Both species are present in the Beaufort Sea area sampled by the University of Oregon. 43 36 About half (253) of the samples collected in the 1971-1977 collections from the Beaufort Sea contained myodocopids.
Dorsal margin of mandibular basale with 6 bristles P. vitjaziensis Dorsal margin of mandibular basale with 4 bristles 2
End joint with 3 claws (shortest of these with few medial teeth, others with few lateral teeth) and 4 bristles. 1st endopodial joint with 1 alpha bristle with few long hairs, and 4 beta bristles with few long hairs (outermost of these tend to be claw-like, with few short spines).
Sclerite: Typical for genus
Furca (Fig. 5b): each lamella with 10 claws decreasing in length and width posteriorly along the lamella; claw 1 with lateral and medial teeth forming a row along posterior margin;. Endopodite: 1st joint hirsute, with 1 hirsute alpha-bristles and 4 hirsute beta-bristles; terminal joint with 11 or 12 poorly developed setae, mostly glabrous. 2nd exopodial joint with stout, flat, pubescent terminal process (appearing sclerotized at tip), 2 slender distal setae, and 2 or 3 proximal setae.
3rd exopodial joint with 3 (possibly 4) slender hairs on the inner lobe and 2 stout hairs on the outer lobe. Terminus obscure on specimen examined, consisting of comb with about 9 alate teeth versus about 4 short pins and 1 slightly longer sclerotized pin (Figure 5h,i). Furca (Figure Id): Each lamella with 9 claws decreasing in length and width posteriorly along lamella; claw 1 with lateral and medial teeth forming row along posterior margin; teeth.
Sclerite (Figure Id): Typical for genus
A single female left valve examined has no medial hairs on the anteroventral lamellar extension of the rim. The proximal setae of an exopodite on a female mandible from bottle 1 is 160 percent the length of the stem and the distal setae is 136 percent (Figure 9d). Because the number of hairs varies on different specimens of both species, as well as on left and right valves of the same specimen, further study will be needed to determine whether the character is reliable.
DISTRIBUTION.-Members of the genus have been collected at shelf and slope depths (intertidal to 1226 m; Kornicker and Caraion, 1977:40). Valve surface with abundant, poorly developed, round fossae; some specimens with reticulations that include several fossae in the posterodorsal part of the valve. Long 5th joint with few dull spines; sensory hairs with 7 short proximal filaments and 5 terminal filaments including tip of stem.
Sclerite: Normal for genus
DESCRIPTION OF THE ADULT MALE (Figures 13-15).—Carapace more elongated than that of the female and more open incised (Figure 13). Ornamentation (Figure 13): Lateral surface with weakly developed ribs on posterior half; surface with pale minute fossa. 5th node minute, interspersed ventrally between 4th and 6th nodes, with stout sensory hairs bearing abundant slender long filaments in proximal half wide; distal end punctured with 3 short marginal filaments and bifurcated tip.
6th joint approx. same length as 4th joint, with lateral spines and spinous medial bristles (absent in illustrated specimen). Endopodite 3-jointed: 1st joint with 5 proximal bristles and 1 distal bristle; 2nd joint with 1 long spinous proximal bristle and 3rd.
Anterior margin of 6th limb with 2 bristles on at least 1 limb and usually on both . 2 Anterior margien of 6th limb with 1 bristle 5
First antenna (Figure 16a): 1st joint with spines on ventral and dorsal margins and medial and lateral surfaces. Exopodite: bristles of 2nd joint reaching just past 9th joint, with ventral hairs; bristles of joints 3-8 with nanate hairs, no spines; 9th joint with 4 bristles (2 long with nate hairs, 1 short with short marginal hairs; 1 very short, dorsal); joint 1 with fine hairs along the concave dorsal margin; joints 2–8 with fine hairs forming distal row, no basal spines; 9th joint with strong lateral spine, which has a length of approx. 1/3 of the joint. End joint with stout dorsal claw with mid-length ventral spines and 4 or 5 spinous bristles (3 or 4 stout, 1 slender).
Basales: medial surface near dorsal margin with 6 glabrous setae (1 proximal, S distal); medial surface near ventral margin with 3 glabrous setae just proximal to midlength; lateral surface with proximal seta in middle; ventral margin with long spiny terminal bristle; medial surface and dorsal margin of spinous joint (not all spines shown on illustrated arm). Endopodite: 1st joint with proximal medial spines (not all shown on illustrated arm), small glabrous alpha-setae and long beta-setae (glabrous or with a few weak spines); 2nd joint with terminal seta about as long as beta-bristle of 1st joint. Ventral margin of comb with about 40 barbed setae of unequal length (only distal setae shown in illustrated comb); the back edge of the comb tip with long hair (not shown on the illustrated comb).
Sclerite (Figure I6g): Typical for subfamily
Second antenna (Figure 17a): Protopodite with small distal medial bristles and spines along the dorsal and ventral margins and on the medial surface near the dorsal margin. Basal endite with 4 stout terminal setae, gland pin, 2 dwarf setae and 2 triaenid setae (proximal with 5 pairs of marginal spines proximal to the terminal pair, distally with many fine spines that thicken distally along the setae). Exopodite hairy, reaching about halfway to the dorsal margin of the first endopodial joint, with two short subterminal setae.
2nd endopodial joint: dorsal margin with 2 slender proximal setae and strong spiny a-, b-, c- and d-setae; lateral surface with long slender spinose setae between b- and c-setae and c- and d-setae (the latter missing on the illustrated left arm but present on the right); medial surface with 5 cleaning setae forming an oblique row between b- and c-setae, 5 cleaning setae forming an oblique row between c- and d-setae, 1 long barbed seta just distal to base of d-setae, and spines that forming rows near the ventral side of the margin; ventral margin with 3 strong spiny terminal setae. Anterior margin with a fairly long bristle at the upper suture, but no bristles at the lower suture. In the original description, Chavtur (1983:81) collected specimens in 63 specimens from specimens from the Sea of Okhotsk, and the seventh arm was the subarctic Pacific (regions off Japan, Aleutian Islands, reported to have 6 terminal and 7 proximal setae (Chavtur , Kamchatka and Vancouver Island), Japan, Okhotsk, Bering, 1978:157).
DISTRIBUTION.—Bathyleberis yamadcd was collected at 3-5. NOTES.—Hiruta (1983:75) reported that some ovigerous m at Oshoro on the Hokkaido Sea coast of Japan (Hiruta, females of B. yamadcd had additional egg clusters in 1979:99). Chavtur is located on the coast of the Sea of Okhotsk Urop. This is the only report of eggs both in a marsupial and on an island (Sčukina Bay), depth 20 m. The record was collected on the coast of the Sea of Okhotsk on the island of Kunashir, which the author overlooked in his list of Myodocopina species (Izmena Bay), depth 6-8 m, and along the Pacific coast, that the eggs are both in the ovaries and the marsupium (Kornicker, island Urop (Cape Temnyy), depth 20 m (Chavtur table 7).
Key to Species of Bathyleberis
Sensory bristle of 1st antenna with 7 long terminal filaments, anterior margin of 6th limb with 6 or 7 bristles B. grossmani
3rd joint separated from the 4th joint by several medial and lateral sutures, with 7 setae (1 small, ventral, 6 spiny, dorsal) and with lateral spines forming rows near the ventral margin. Exopodite: setae from the 2nd joint reaching the 9th joint, with long ventral setae; bristles of joints 3-8 with natural bristles, no spines; 9th joint with 4 setae (2 long with natural setae, 1 short with small marginal setae, 1 minute, dorsal, glabrous); joints 2-8 with fine spines forming a distal row; 9th joint with lateral spine, approximately half joint length; basal spines are absent. Basal: endite with 4 terminal setae, 3 triaenid setae (distal with 11 pairs of spines proximal to the terminal pair, others with 4-6 pairs proximal), 2 dwarf setae and gland pen; ventral margin of basal with U-shaped depression; dorsal margin with 1 fairly long, posteriorly directed bristle spines, and 2 spinous bristles (proxially less than half the size of the other); medial surface with spines lining up along the proximal edge and also along the dorsal edge; lateral surface with spines lining up along dorsal margin.
2nd endopodial joint: dorsal margin with 2 proximal setae, stout a, b, c and d setae; lateral side near dorsal margin with long bristles between b and c bristles and c and d bristles; medial surface with spine forming rows, 2 setae between a and b setae, 3 setae forming an oblique row between b and c setae, 5 setae forming row between c and d setae, and 1 long spinous bristle just distal to base of d brush; ventral margin with 3 terminal bristles. Limbs with fairly straight, exposed dorsal claw and 5 barbed bristles (4 stout, 1 slender, all barbs not shown on bristles). Endopodite: 1st joint with short alpha brush and long spinous beta brush; end joint with spinous terminal bristles about the same length as beta bristles.
- Sclerite (Figure 19b): Typical for genus
Posterior of Body (Figure 19/): Similar to that of holotype but dorsal process obscure on specimen. 3rd and 4th joints differ from those of adult females in that no visible suture separates them on medial or lateral surfaces; 3rd joint with small ventral bristles and 4 dorsal bristles; 4th joint with 2 ventral and 1 dorsal setae. 6th joint with medial hairs reaching just beyond tip of a brush of 7th joint 7th joint: a and b hairs similar to those of adult female; c hairs with 5 marginal filaments.
8th joint: pierced d about the same length as the threads a of the 7th joint, tapering to a point; e-ear only slightly longer than puncture d, with open tip; f-lies similar to that of the adult female, but not bent on the back; g-spike slightly longer than c-spike of 7th node, with 5 marginal filaments. Brush: Each lamella with 7 claws; the last claw as pierced and with the base set back from the edge; claws of right lamella slightly anterior to those of left lamella; margin behind lamellae with small spines. Baker did not mention a lateral eye, but the female paratype grown in the National Museum of Natural History, USNM 1513%, has lateral eyes with 5 or 6 ommatidia.
Station Data with Specimens Collected
Philomedes brenda: 16 (includes 1 ovigerous female and 1 adult female, USNM 193284A3, both with hyrozoic colonies on carapace). collected via helicopter from Point Barrow).
Literature Cited
Requests for special treatment - use of colors, folds, bound covers, etc. - request additional approval from the sponsoring authority on the same form. On the first page of the text, the title and author should be at the top of the page; the second page should contain only the author's name and work mailing address, which are used as an unnumbered footnote on the first page of the printed text. Synonymy in zoology must use the short form (taxon, author, year), with full citation at the end of the paper under.
Extensive notes should be collected and placed in a notes section at the end of the text. For titles of books and articles, capitalize sentences according to the rules of the language used (exception: capitalize all important words in English). Legends for illustrations should be submitted at the end of the manuscript, with as many legends typed, double-spaced, on a page as is convenient.
