796 BULLETIN 82, TrKlTED STATES NATIONAL MUSEUM VOLUME 1 



and the fourth at 11 + 12. There is at least one cirrus with 19 segments; the penulti- 

 mate is slightly longer than broad and the terminal claw is a little curved. Another 

 specimen has the width at the first syzj^gy 1.8 mm., the length to 9 + 10 is 9 mm., and the 

 centrodorsal is 2.5 mm. high. A third has the arm width 1.4 mm. and the first 9 brachials 

 together measure 8.0 mm. The fourth has the centrodorsal broken, the arm width is 

 2.1 mm. and the length to 9+ 10 is 9.5 mm. The second syz3-gy is in tliis position on all 

 four remaining arms. Pt, P,,, and P3 are all more or less complete with over 20 segments. 



Localities. — Albatross station 5173; in the vicinity of Jolo (Sulu); Jolo light bearing 

 N. 82° E., C.75 miles distant (lat. 6°02'55" N., long. 120°53'00" E.); 340 meters; 

 shells and coral; March 5, 1908 [A. H. Clark, 1908] (1, U.S.N.M., 35929). 



Siboga station 95; Jolo (Sulu) archipelago (lat. 5°43'30" N.,long. 1]9°40'00"E.); 

 522 meters; stony bottom; June 26, 1899 [A. II. Clark, 1918] (5, Amsterdam Mus.). 



Albatross station 4934; Eastern Sea, off Kagoshima Gulf; Sata Misaki light bear- 

 ing N. 77°30' E., 7 miles distant (lat. 30°58'30" N., long. 130°32'00" E.); 188- 

 278 meters; temperature 13.33° C; bottom rocky; August 16, 1906 [A. H. Clark, 

 1907, 1908, 1921] (13, U.S.N.M., 22699, 35930). Tj-pe localit}-. 



Dr. Mortcnsen's Japanese station 7; off Kiu-Shiu, Japan (lat. 32°17' N., long. 

 128°11' E.); 200 meters; sand; May 14, 1914 [Gisl6n, 1927] (1, CM.). 



Dr. Mortcnsen's Japanese station 24; Sagami Sea; 914 meters; June 26, 1914 

 [Gisl6n, 1927] (1, CM.). 



Dr. Mortcnsen's Pacific Expedition; 7 miles S. of Olutanga, Mindanao; c. 548 me- 

 ters; hard bottom; March 8, 1914 (1, CM.). 



Danish E.xpedition to the Kei Is. station 49; 245 meters; sand; May 3, 1922 

 (1, CM.). 



Geographical range. — From the Jolo (Sulu) archipelago, Kei Islands and Philippines, 

 northward to southern Japan. 



Bathymetrical range. — From 200 (?18S) to 914 meters. 



Thermal range. — One record, 13.33° C. 



Remarks. — In my first account of the species of Pentametrocrinus collected by the 

 Albatross off southern Japan in 1906, published in 1907, I confused this form with 

 P. japonicvs with which it agrees in pinuulation in contrast to the other common 

 Japanese species P. varians. But this error was almost immediately discovered, and 

 P. diomedeae was described in 1908, a PhiUppine station being added to the original 

 Japanese locality. The Siboga had abeady met with this form in the Philippines in 

 1899 and the specimens collected were described in 1918. 



PENTAMETROCRINUS JAPONICUS (P. H. Carpenter) 



Figure 50 



[See also vol. 1, pt. 1, figs. 67 (not 66 as given in the legend (p. 93),'299(p. 264), 404(p. 311), 513(p. 373; 



pt. 2, figs. 114, 115(p. 67)1 



Eudiocrinus japonicus P. H. Carpenter, Journ. Linn. Soc. (Zool.), vol. 16, 1882, p. 495 (in key), 

 p. 499 (description; Challenger sta. 235); Challenger Reports, Zoology, vol. 11, pt. 32, 1884, 

 pp. 47, 109, 127, 339, 378 (notes). — Perkier, JMiSraoire sur Torganisation et le developpement de la 

 comatulc de la Mdditcrrante, 1886, p. 106 (saceuli) . — P. H. Carpenter, Challenger Reports, Zoology, 

 vol. 26, pt. 60, 1888, p. 84 (description; Challenger sta. 235); pi. 7, figs. 1, 2. — Minckert, Arch. 

 Naturg., Jahrg. 71, vol. 1, Heft 1, 1905, p. 171 (syzygies). — Hamann, Bronn's Klassen und Ord- 

 nungen des Tier-Rcichs, vol. 2, Abt. 3, 1907, p. 1576 Qisted).— A. H. Clark, Proc. U.S. Nat. 



