A MONOGRAPH OF THE EXISTING CRINOIDS 121 



surface recumbent, making an angle of approximately 90 with the dorsoventral axis, 

 the edges smooth and unmodified; cirri 35-40 mm. long with 62-66 segments (off Celebes; 



1,158 meters) perplexa (p. 129) 



d 1 . IBr, with the proximal and distal edges prominently everted, smooth, somewhat wavy, or 

 coarsely tubercular, and with a prominent median rounded carination; cirri 45-50 mm. 

 long with 50-64 (usually 57-58) segments (Laccadive Sea; 786 meters) .carinif era (p. 130) 

 a*. Cirri with not more than 45 segments of which all but the basal four or less bear long and con- 

 spicuous dorsal spines; elements of the IBr series and first two brachials sharply carinate; 

 small and delicate, the 10 arms not more than 50 mm. long. 

 6 1 . The first four cirrus segments do not bear dorsal spines; the fourth and a few of the following 



segments are nearly or quite twice as long as broad; arms about 50 mm. long. 

 c l . Axillaries longer than broad; IBr series and lower brachials with straight sharp edges, a sharp 

 median carination, and a smooth dorsal surface (off Kandavu, Fiji; 2,468 meters). 



acutiradia (p. 132) 



c 2 . Axillaries nearly or quite twice as broad as long; IBri with two long and rather stout blunt 



spines, one on the distal and one near the proximal edge, and a similar but shorter spine 



on each side; axillaries with a high median crest that may be more or less deeply notched 



in the middle; 30-40 cirrus segments (Hawaiian Islands; 640-649 meters) .decora (p. 134) 



V. All, or all but one or two, of the cirrus segments bear high, broad, and conspicuous dorsal spines; 



a few of the earlier cirrus segments are slightly longer than broad; arms about 45 mm. long; 



cirri 17 mm. long with 40-45 segments (off Sydney, New South Wales; 1,737 meters). 



spinicirra (p. 136) 



STIREMETRA LUSITANICA (P. H. Carpenter) 



Comatules PABFAIT, Rapport sur la campagne scientifique du Talisman en 1883, 1884, p. 43 (lat. 

 3347' N., long. 1123' W.; 1,635 meters; "comatules jaune soufre")- A. H. CLARK, Proc. 

 U. S. Nat. Mus., vol. 40, 1911, p. 48. 



Antedon lusitanica P. H. CARPENTER, Proc. Roy. Soc. Edinburgh, vol. 12, 1884, p. 368 (detailed 

 description; Porcupine, 1870, station 17a; discussion), p. 372 (Porcupine, 1870, station 17o); 

 Challenger Reports, Zoology, vol. 11, pt. 32, 1884, p. 315 (Porcupine station 17a, with fragments 

 of Pentacrinus [Annacrinus] wyville-thomsoni) ; vol. 26, pt. 60, 1888, pp. 109, 217 (description; 

 Porcupine station 17o; discussion), pi. 39, figs. 1-3; Journ. Linn. Soc. (Zool.), vol. 24, 1891, 

 p. 65 (neighborhood of Madeira, from a submarine cable in 500-700 fathoms; discussion). 

 HARTLATJB, Bull. Mus. Comp. Zool., vol. 27, No. 4, 1895, p. 131 (in the Basicurva group; bathy- 

 metrical relationships), p. 135 (compared with [Thalassometra] agassizii, sp. nov.). GRIEG, 

 Bergens Mus. Aarbog for 1903 (=1904), No. 5, 1904, p. 35. MINCKERT, Arch. Naturg., Jahrg. 

 71, 1905, vol. 1, Heft 1, p. 211 (syzygies; regeneration). HAMANN, Bronn's Klassen und Ordnun- 

 gen des Tier-Reichs, vol. 2, Abt. 3, 1907, pp. 1578, 1581 (listed). KOEHLER, Re"sultats des 

 campagnes scientifiques accomplies sur son yacht par Albert 1" Prince souverain de Monaco, 

 fasc. 34, 1909, p. 267 (Princesse- Alice stations 806, 1897; 1116, 1236, 1901; 1713, 1904; 2048, 1906), 

 pi. 1, figs. 7, 8, pi. 32, figs. 12-14. A. H. CLARK, Proc. Biol. Soc. Washington, vol. 22, 1909, p. 

 18 (not allocated in the revision of the Thalassometridae). -HARTLAUB, Mem. Mus. Comp. Zool., 

 vol. 27, No. 4, 1912, p. 309 (in the Spinifera group; history) . MORTENSEN, Handbook of the 

 echinoderms of the British Isles, 1927, p. 25. 



Thalassometra lusitanica A. H. CLARK, Smithsonian Misc. Coll., vol. 50, pt. 3, 1907, p. 360 (listed); 

 Proc. U. S. Nat. Mus., vol. 40, 1911, p. 7 (northwestern coast of Africa), p. 37 (synonymy; 

 Madeira; south of Funchal; off the southeastern coast of Tenerife; near Mogador; between 

 Madeira and Morocco; 900-2,165 meters); Smithsonian Misc. Coll., vol. 61, No. 15, 1913, p. 

 46 (published references to specimens in the British Museum; Porcupine station 17a, 1870); 

 Unstalked crinoids of the Siboga Exped., 1918, p. 167 (in key; range), p. 171 (references). NOBRE, 

 Echinodermes de Portugal, 1931, p. 163. 



Antedon (Crotalometra) lusitanica KOEHLER and VANET, Bull. Mus. d'Hist. Nat. Paris, 1910, No. 1, 

 p. 26 (collected by the Travailleur or Talisman), p. 31 (lat. 3317' N., long. 1123' W.; 1,635 

 meters) . 



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