194 



On one arm 1', and 1',. as well as the pinnules following, bear gonads, a condition 

 beforc i »bsen ed. 



2. Strotometra parvipinna (P. 11. Carpenti 



I'. II. Cari iorts. Comatulai i . p. \ i~ . pi. 15. fig. 9 {Antedon 



\. II. Clark. Smithsonian Miscellaneous ('ollections, vol. 61, [913, N' 15, p. 50 (Stro/ometra 



f,ii . 



E. Arafura Sea. 310 Metres. 1 I :. 

 E. I imor Sea. 520 M< I Ex. 



The largest specinv n from Stat. 297 has the arms 75 mm. long, and is relatively large 

 and stout; the surface of the dorsal 'pole of the centrodorsal and ol the radials and IBr, is 

 thickly covered with irregular tubercles, so tha't it appears more or less sponge-like ; the 

 borders of the ossicles of the IBr series and of the first two brachials are thickened and 

 slightly ■ Br axillary) has a rather high median keel: the following ossicles have 



a prominent rounded median tubercle which becomes a low broad carinate process on the 

 triangular brachials; the cirri are XVI, 12 — 13; the longest proximal segments (the third and 

 fourth are slightly longer than broad; the distal segments are slightly broader than long; 

 1' has 17- yments. 



Another, similar to the preceding but with the arms only 60 mm. long, has the modi- 

 Bcation of the surface of the radials and 1 1 ï i - 1 not so strongly rriarked; the cirri are X, 12. 



A third is similar to the last, but the modihcation of the surface of the radials is 

 able; the cirri are X, 11 — 12; all of the others but one resemble this. 



A \i ry interesting individual with the arms 6=; mm. long has the IBr, with a high 

 rounded median keel, and everted lateral borders; on either side of the median keel there are 

 from two to five high rounded tubercles; the type of ornamentation as a whole strongly 

 ests the condition found in Glyptometra tuberosa\ the IBr axillary has the borders slightly 

 everted, and the distal borders margined with continent tubercles which rapidly diminish in 

 width from the median line to the outer angles. 



3. Strotometra hepburniana (A. II. Clark'. 



.\. II. CLARK. Proc. U.S. National Museum, vol. n, 1907, p. 139 {Antedon hepburniana). 



Vidensk. Medd. fra den naturhist. Forening i Kobenhavn, 1900, p. 187 [Strotometra 



hepburnian 



4. Strotometra priamus \. 11. Clark. 



A. II. CLARK. Proc. Biol. Soc. Washington, vol. 25, 1912, \>. Ni. 



Sta: ira Sea. 595 Metres. 39 Ex. 



17. iO c 3'i S.. 520 Metres. 



The centrodorsal i^ very low. low hemispherical or almost discoidal, from 1.5 mm. to 



