possibly the same as that mentioned by von Willemoes— Schm of which the specimens were 

 subsequently lost. A detailed description of the form, by Mr Clarexci; R. Shoemakek, is 

 now in press. 



3. Iridometra exquisita A H. Clark. 



A. H. Clark. Proc. U. S. National Museum, vol. 36, 1909, p. 408 [Iridometra exquisita). 

 Proc. U.S. National Museum, vol. 39, 191 1, p. 559 (Iridometra exquisita). 



The original specimen upon which this species is based is small and probably immature. 

 The long Pj and the rather unusually spinous condition of the distal ends of the pinnule 

 segments suggest a comparison with the small species of Compsometra ; but the relatively large 

 P 3 shows that it cannot be referred to the genus. The specimen recorded in 191 1 (Cat. 

 N° 36024 U. S. National Museum) appears to be a more developed individual of the same 

 species; the arms are about 50 mm. long, and the cirri are 11 mm. long; P l is 5 mm. long, 

 with 12 segments; P 2 is also 5 mm. long, with 11 segments, similar to P x ; P., is 4 mm. long 

 with 9 segments, proportionately shorter and more slender; P 4 is similar, with 8 segments, 

 nearly or quite as long; P 6 is 4 mm. long with 10 segments. 



Eumetra A. H. Clark. 

 Key to the Species of the Genus Eumetra. 



a 1 Cirri very long and slender, from the third to one half of the arm length, 

 composed of 25 — ^i, (usually 25 — 26) much elongated segments of which 

 the longest are about five times as long as the proximal diameter, and the 

 last three or four are about two and one half or three times as long as 

 broad ; 110 opposing spine; terminal claw very slightly curved (Philip pin e 

 Islands; 141 — 144 Me tres) chamberlaini 



a" Cirri shorter and less slender, about one quarter of the arm length, composed 

 of 16 — 18 segments which are not especially long, the longest proximal 

 (fifth-seventh) being nearly or epiite three times as long as broad proximally, 

 and the last three or four less than twice as long as the distal breadth ; a 

 prominent opposing spine; terminal claw strongly curved (Less er Sun da 

 Islands; 69 — 7 3 Metres) aphrodite 



1. Eumetra chamberlaini A. H. Clark. 



A. H. CLARK. Smithsonian Miscellaneous Collections (Quarterly Issue), vol. 52, 190S, part 2, 

 p. 23 1 (Eumetra chamberlaini). 

 - Proc. U.S. National Museum, vol. 39, 1911, p. 563 (Eumetra chamberlaini). 



2. Eumetra aphrodite A. H. Clark. 



A. H. CLARK. Notes from the Leyden Museum, vol. 34, 1912, p. 137 (Iridometra [Eumetra] 

 aphrodite). 



