This species has been recorded from the Siberian Polar Sea, Spitzbergen, the coast of Norway, the Skagerrak and the east coast of Greenland. The National Museum has specimens of this species from the Bay of Fundy and Delaware on the US east coast and off San Diego, California, on the west coast.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER II
12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 Haploops laevis is widely distributed in the Arctic and is probably
Bulychev's description and numbers of the dorsal projection of the first segment of the urosoma agree with those given by Ekman for P. The palp of the mandible may be reduced to two joints or one, or may be entirely absent.
14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28
NO. I POINT BARROW AMPHIPODA — SHOEMAKER I5
KEY TO THE GENERA OF THE STENOTHOIDAE
NO. I POINT BARROW AMPHIPODA — SHOEMAKER I7
Given the extreme similarity between these three species, it seems possible that the number of joints in the palp of the first maxilla may be variable. Ten specimens of Metopa glacialis have been found in the mantle cavity of a lamellibranch, Mediolaria discors Linn., dredged approximately 3 fathoms in the St.
20 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 28 METOPA BRUZELII (Goes)
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 21
This species has been recorded from the Barents Sea, Western Norway, the Firth of Forth, the North Sea and St. Metoparobusta Bay has been recorded from North and West Norway, Denmark, Scotland, South and West Greenland.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 23
This species was transferred to Mesometopa, as the mouthparts correspond to this genus as defined by Gurjanova. Antenna 2, third peduncular joint expanded proximally with upper margin conspicuously raised above margin of second joint; fourth joint longer than both.
NO, I POINT BARROW AMPHIPODA — SHOEMAKER 25
26 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL, I28 the third or fifth; flagellum a little longer than fourth peduncular
Antenna i, first and second joint about equal length; the third joint is half the length of the second; the flagellum may be slightly longer than the pedicel and consists of about 13 joints. Gnathopod 2, second joint as long as fifth and sixth combined; the fifth joint is half the length of the sixth and is developed into a narrow lobe below; sixth joint oval, palm. Telson extending slightly beyond end of peduncle of uropod 3, about two-thirds as wide as long, without marginal spines and with sides tapering to a narrow rounded tip.
Stephensen described this species from a single female taken in the northern Strømfjord, which is located on the lower part of the west coast of Greenland. A male has been figured here, the proportions of the appendages varying somewhat from those of the female. Gnathopod i in the male is proportionately shorter, the fourth joint not equal to half the length of the fifth, whereas i.
I28 the female is more than half the length of a fifth; there is no sixth conclusion.
30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 female it is over half the length of the fifth; the sixth joint is not
The first jaw has i on the inner lobe and 5 spiny teeth on the outer lobe; the palp is i-jointed. All peraeopodia with sixth joint slightly expanded distally and obliquely truncate; truncate end furnished with several pairs of short, stout spines, which together with the dactyl form a more or less efficient subchelate grasping organ. The specimen of this species in the collection of the National Museum, identified by Gurjanova, does not have spines on the telson.
32 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 METOPELLOIDES TATTERSALLI Gurjanova
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 33
34 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 flagellum not quite as long as the fifth peduncular joint and composed
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 35 Family ACANTHONOTOZOMATIDAE
I28 This species has been taken in the Kara Sea; Spitzbergen; East and This species was taken in the Kara Sea; Spitzbergen; East and West Greenland; Baffin Bay; labrador; Gulf of St, Lawrence;. Atlantic coast of Nova Scotia; Clinton Point and Kotzebue Sound, Alaska; off Diomede Island; and now from Point Barrow. Odius carinatus is taken at Spitzbergen; Northern, Western and Southern Norway; East coast of England; Iceland; East and West Greenland; off Newfoundland; The Pribilophæ; and now from PointBarrow.
New Siberian Islands, Kara Sea, Franz Josef Land, Spitzbergen, Iceland, East Greenland, West Greenland, Baf^ Bay, Dolphin and Union Straits, Alaska, Bering or Okhotsk Sea. I POINT BARROW AMPHIPODA — SHOEMAKER 37ashoreatPoint Barrow base, August, September and October, 1949, ashoreatPoint Barrow base, August, September and October, 1949,. This is probably a circumpolar species that dives into the North Atlantic to the Kattegat and St.
This species has been recorded in West Greenland, East Greenland, Northern Norway, the Kara Sea, the New Siberian Islands and Alaska.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 39
Pleustes panopla is a circumpolar species that dives into the cold waters of the North Atlantic and North Pacific. Lawrence, Bay of Fundy, and Labrador, and they all agree in all characters with atypical specimens from Grand Manan, the other gnathopod found here. The palm of this gnathopod is smoothly convex, the proximal end entering the three rounded lobes which form a projecting angle with the palm, each bearing on its inner side a group of spines; the seventh joint fits the convex palm and reaches the first group of spines.
Stebbing considered the three spinose lobes to be part of the palm, but believed that Sars considered themes separated by the posterior margin of the sixth joint.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 41 gnathopod of a specimen from Spitzbergen which she identified as
I have low, backward-pointing ridges at the lower end of the segments, just low, backward-pointing ridges at the lower end of the segments, just above the coxal plates. The waters around Alaska and the Bering Sea are inhabited by an assortment of forms that appear to be variants of the typical panopla. Beautiful specimens were taken in 1940 at Pavlof Bay, at the southern end of the Alaska Peninsula, by Dr.
The lower posterior margin of the second articular of the last three peraeopods is obliquely truncate. The second joint of the last three peraeopods has the posterior margin uniformly rounded below and not truncated as in Sympleustes uncigera Gurjanova. There is no hook or tooth in the lower posterior corner of the third segment of the metasoma.
The current record appears to be the second occurrence of this species, which was described from the Kara Sea.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 45
On the coast of the United States it has been recorded from Cape Ann, Mass., and on the Asian coast from the Sea of Japan from Gurjanova. I POINT BARROW AMPHIPODA - Cobbler 47Zembla, New Siberian Islands, East and West Greenland, and Great Zembla, New Siberian Islands, East and West Greenland, and Grand Manan. Rozinante fragilis is probably a circumpolar species, which, in the western Atlantic, has been recorded as far south as the Gulf of St.
It is found in the cold lakes of Alaska, in Canada and the northern parts of the United States from Maine to Washington, and has been recorded by Leslie Hubricht from Michigan, Illinois, Missouri, Arkansas and Oklahoma. 128Material collected.- Near the coast at the Point Barrow base, July 15, Material collected.- Near the coast at the Point Barrow base, July 15, 1948, In copy. This variety of Gammarus locusta has been recorded from Northern and Southern Norway, Spitzbergen, Iceland, East Greenland, the Barents Sea, Jan Mayen and Arctic America.
I POINT BARROW AMPHIPODA — SHOE 49Material collected.— Taken at Eluitkak Pass, Elson Lagoon, Au- Material collected.— Taken at Eluitkak Pass, Elson Lagoon, Au-.
5« SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 Melita dentata is a circumpolar species that dips down into the
Maxilliped, inner lobe extends beyond the center of the outer lobe and armed with the usual spines, but notes; outer lobe long, reaching to about the end of the second palp joint, distally and armed on the inner margin with spines that shorten towards the base. Seventh joint is strong and curved, with the distal end resting on the inner surface of the sixth joint when closed against the palm. Metasome segment 2 has 5 dorsal teeth and segment 3 has 5 dorsal teeth and a small tooth just above the lower posterior corner.
The segment of the urosomes has 3 dorsal teeth; Segment 2 has 4 dorsal teeth and segment 3 has a simple suggestion of 2 dorsal teeth. The telson extends to the end of the peduncle of uropod 3, and is cleft at the base with each lobe ending in a triangular central lobe, on either side of which is a spine.
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 53 MAERA DANAE (Stimpson)
54 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 Maera danae bears a rather close superficial resemblance to Maera
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 55 as long as palm and bearing a slight protuberance on the inner margin
The specimen taken from PointBarrow does not match any of the described species of Hyale; therefore more. Lawrence, the east coast of the United States as far south as the Gulf of Mexico, and in the Pacific Ocean from the Sea of Okhotsk. As the second gnathopod of the male appears to be quite variable, the figures of gnathopods of a male measure 8 mm.
The distal lobe of the lower posterior end of the second joint of the first male gunatopod is very characteristic of this species. Gnathopod i lacks lobe on posterior lower margin of second joint; the fifth node is. This species reaches a length of 9 mm., and has been taken from shallow water up to 160 m.
Antennae 2, third joint a little more than one-third the length of the fourth, which is equal in length to the fifth.
64 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 28
Gnathopod and slender; second and fifth joint equal in length; sixth joint slightly shorter than fifth but equal in width; palm very short and oblique and defined by a very thin lamella bearing very fine marginal teeth; posterior margin of joint bearing 3 strong spines and several long slender spines; the seventh joint extends beyond the middle of the posterior margin of the sixth joint, and is armed on the inner margin with very fine teeth and numerous setae. Peraeopoda i and 2 equal, fourth joint expanded; fifth joint a little over half the length of the sixth; both the fifth and sixth joints are slender;. Segments of metasoma with lower lateral posterior margin rather convex posteriorly and lower posterior angle blunt.
Uropod i, peduncle armed on upper outer margin with about 9 short spinules, the lower distal end formed into a strongly upwardly curved toothed projection. Sars shows the lower posterior corner of the third segment of the metasoma as evenly and broadly rounded, which may be due to difficulty in observing the outline of the colorless transparent segment. Many specimens of this species were caught in Pavlof Bay on the Alaska Peninsula by Dr.
Unciola leucopis has been recorded from Nova Zembla, Spitzbergen, the west coast of Norway, Iceland, the east and west coasts of Greenland and along the east coast of North America down to Georges Bank on the coast of Massachusetts.
68 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 128 ERICTHONIUS HUNTERI (Bate)
NO, I POINT BARROW AMPHIPODA — SHOEMAKER 69 Family PODOCERIDAE
70 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL, 128 The eye, which is reddish brown in alcohol, is situated in an oval,
Material collected.— From medusa taken half way between Point Barrow and Point Barrow base, August 10, 1948, in specimen. Stephensen says of this species: "Widely distributed in the North Atlantic, chiefly north of 50° N., and Arctic seas;. Stephensen says of this species: "A Boreo-Arctic species, widely distributed in the North Atlantic with adjacent Arctic regions . the seas."
I28 was recorded from Collinson Point, Alaska {H. kroeyeri Shoe- was recorded from Collinson Point, Alaska {H. kroeyeri Shoemaker, 1920, p.24); and from the Gulf of St. Themisto libellula is a circumpolar species extending into the North Atlantic Ocean as far as Iceland and southern Greenland. It was recorded from Bernard Harbor, Northwest Territories, and Dolphin and Union Strait (Shoemaker, 1920); and from Hudson Bay (Shoemaker, 1926).
Themisto abyssorum is an Arctic species that descends into the northern part of the North Atlantic and North Pacific Oceans.
LITERATURE CITED
74 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 1 28 Dementieva, T
NO. I POINT BARROW AMPHIPODA — SHOEMAKER 75
76 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I28 Murdoch, John
NO. I POINT BARROW AMPHIPODA — SHOEMAKER TJ
