The designation of the former was correct, but the latter appears to have been in reality Tropiometracarinata. The work of two French steamers, the Travailleur and the Talisman, had resulted in the discovery of many interesting crinoids on the coasts of southern Europe and northwestern Africa. Hartlaub's monograph on the comatulid fauna of the East Indian Archipelago, published in 1891 (following a preliminary paper in 1890).
The work of the Prince of Monaco has greatly contributed to our knowledge of the crinoids of the deeper waters of North West Africa. Cyril Crossland on the coast of the Sudan in the course of the investigations of the marine biology of the Red Sea under the right-. In October 1909 Professor Bell reported on the echinoderms of the Percy Sladen Trust expedition, which included four crinoids.
In deeper waters, where species of intermediate fauna3 live, we find a strongly pronounced "West Indian". In the deep waters of the Atlantic occur certain genera of the oceanic region, which are found in all the deep seas, except that they never invade the territory occupied by the so-called polar-pacific species. 13 South-East Coast.— The south-east coast of Africa is the most animal-rich part of the continent, supporting twenty-two species distributed among eighteen genera, the last eleven of which do not occur farther north.
The European division, including the Mediterranean coast and then the north-west coast north of Morocco and Madeira; this falls under two subsections:. a) The Mediterranean area, which includes the coast of the Mediterranean Sea and.
The South European-Northwest African-Antillean di- vision, extending from Madeira and Morocco northward to the
The West African South-American division, including the coast south of Morocco and the opposite coast of Brazil, with the
The Southeast African division, extending from Mombasa to
The Northeast African division, extending from Somaliland northward throughout the Red Sea and eastward to the Persian Gulf
COMATULIDS
Remarks.--The specimen from Salomon, which I examined in the British Museum, has twenty-six arms 85 mm. In the Paris Museum there are three specimens of this species from Madagascar; one has circle XV, 21-23, and nineteen wings, one series II missing; two of the IIBr series are 2, the other seven are 4 (3+4); another (Cape St. Andrew; about 30 meters) has cirri XVIII, 21-22, and twelve arms, one ray bearing two series IIBr4 (3+4); the brachials are all short and overlap rather tightly. Cirri are XIII, 13-14; it has twenty-three wings; one of the internal IIIBr series is 2, all other division series are 4 (3+4).
Radial completely hidden; IB^ very short, banded, in lateral arrangement; IBr2 short, two and a half times wider than long, lateral margins not as long as margins of IBrx, in apposition; IIBr 4 (3+4) (eight IIBr series present; remaining arms broken off before first syzygy); IBr, IIBr and first brachials in close lateral arrangement and sharply flattened against each other; the sides of series IBr and IIBr are slightly accentuated; synarthrial tubercles obsolete. I also found in the British Museum a specimen (designated uActinometra sp.") from Waxin, south of Mombasa. Description. — Centrodorsal thick discoidal, glabrous polar area slightly convex, 4 mm.indiameter; cirussocketsinoneandpartly another crowded and irregular marginal row. long, strong, not tapering distally; first segment short, the next gradually increasing in length to the fifth or sixth, which, together with the rest, is about half as wide; from the fifteenth to the sixteenth, the middle of the distal dorsal margin becomes prominent, and these two segments thereafter become distinct, rather highly rounded carination of the whole.
22 ACTS OF THE NATIONAL MUSEUM. median dorsal line; distally this carination gradually narrows antero-posteriorly, so that on the last four or five segments preceding the penultimate there is only a blunt mid-vertebral column; the opposite vertebral column is usually rather longer and sharper than the spines on the preceding segments, terminal or subterminal, directed obliquely forward, half as long as the lateral diameter of the penultimate segment; The terminal claw is slightly longer than the penultimate segment, stout and strongly curved basally, but straighter and more slender in the distal two-thirds. Radials almost completely hidden in the midline, but visible as a very low wide triangle in the corners of the calyx; IBr. t very short, band-like, five or six times as wide as long, laterally close together; IBr2 very broad pentagonal, twice as wide as long; IIBr 4. 3+4), dorsally well rounded; ossicles of the IBr and IIBr series to the PD in lateral apposition, although not particularly flattened; synarthrial tubercles obsolete. Comments.—The stout, short-segmented cirri that do not taper distally, and the uniformly large size of P2, which is much larger than.
On the large lower pinnae the second-fifth segments are rather strongly carinate; it decreases rather quickly distally, is soon limited to the second-fourth and then to the second-third, dis-. P2 is the longest, half again as long as Px or P3, slender, with 21 segments, becoming square on the fourth or fifth, then somewhat longer than broad, as long as terminal; P3 is about as long as Px; P4 and the following pins are shorter than P3.
STALKED CRINOIDS
Comments: This is an excellent strain, but Carpenter subjected it to such intense criticism in the Challenger report that it has been forgotten.
UNIDENTIFIABLE SPECIES
Captain Parfait records comatulides from the Talisman excavations as follows: South of Cadiz Bay (lat. 36°02'N.; dol. 9°01' E.), 126 meters ("une pleine bailie de comatules"); by Cape Spartel. Professor Chun records the discovery of a sulphur-yellow "Eudiocrinus" at Valdivia, representing a new species (as determined by Professor Doderlein) within 1,289 meters of the coast of Somaliland. Kcehler and Vaney believe that the specimen described by them as Bathycrinusperrieri is here referred to.
Sir Wyville Thomson records that the Swedish frigate Josephine obtained this species on Josephine Bank. This group of species extends north to west of the Isles of Scilly and a little west of south of the south-west corner of Ireland (Lat. Remarks.—A number of different species are included by Carpenter and by Kcehler under the name Rhizocrinus rawsoni, none of which is the same as the West Indian originally described below.
APPENDIX
