rhe specimen from Stat 286 is slightly smaller and more slender than the preceding, 

 with the spinosity of the IBr series and firsl two brachials very slightly finer and thicker. The 

 arms are 80 mm. long; the cirri are 27 mm. long with 44 51 segments. 



Thalassometra pubescens (A. II Clark). 



A. II. ( 1 \i,l. Proc. U.S. National Museum, vol. 33, p. 139 [Antedon pubescens). 



4. Thaiassometra marginata A. 11. Clark. 



.\. II. Clark. Crinoids of the Indian Ocean, i>;i2, p. 206 {Thalassometra marginata). 



Thalassometra pergracilis A. 11. Clark. 



P. II. CARPENTER. "Challenger" Reports. Comatulae, 18S8, p. 107, pi. 12, figs. 3—5; pi. 15, 



figs. 1 — 4 {Ante Jon gracilis). 

 A. H. CLARK. Smithsoniun Miscellaneous Collections (Quarterly Issue), vol. 50, part 3, 1907, 



p. 360 ( Thalassometra pergroi il 

 Crinoids of the Indian Ocean, 1912, p. 207 {Thalassometra pergracilis; references, but 



not the specimen recorded). 



I am now convinced that the specimen from the Andaman Islands in about 4S5 fathoms 

 of water which I recorded as Thalassometra pergracilis does not in reality represent that 

 species. It is in too poor condition for definite determination. 



6. Thalassometra hawaiiensis (A. II. Clark). 



A. II. CLARK. Proc. U.S. National Museum, vol. 33, 1907, p. 132 {Antedon haivaiiensis). 

 Proc. U.S. National Museum, vol. 34, 1908, p. 222 {T/ialassonntra hawaiiensis). 



7. Thalassometra agassizii (Hartlaub). 



HARTLAUB. Huil. Mus. Comp. Zool., vol. 28, 1895, N" 4, p. 131, pi. 1, figs. 4, 7, 8; pi. 2, 

 [8, 19; pi. 3, fig. 23 {Antedon ■/). 



s. Thalassometra bispiuosa (F. H. Carpenter). 



1'. II. Carpenter. "Challenger" Reports. Comatulae, 18S8, p. 115, pi. 20, figs. 3, 4 {Antedon 



bispiuosa). 

 \. II. CLARK. Die Crinoiden der Antarktis, 1915. p. 112 {Thalassometra bispiuosa). 



Thalassometra villosa (A. II. Clark 



A. II. Cl. ARK. Proc. U.S. National Museum, vol. 33, 1907, p. 138 {Antedon villosa). 



10. Thalassometra latipinna d'. 11. Carpenter). 



1'. II. Carpenter. "Challenger" Reports. Comatulae, 18S8, p. 116, pi. 10, fig. 3 {Antedon 

 latipinna). 



A. II. Clark. Smithsonian Mi < ollections, vol. 61, [91 ;, N° 15. p. 46 {Thalasso- 



metra la ti pp 



