278 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



History. -The first mention of a specimen of this species was in 1902 by Dr. Hubert 

 Lyman Clark who recorded a very badly broken individual from the Fish Hawk in- 

 vestigations about Porto Rico under the name of Antedon hagenii. 



In looking over the comatulids collected by the Albatross in the West Indian 

 region, I found a number of examples of this form which I recognized as new; and on 

 comparison it was at once evident that Dr. Clark's mutilated specimen was conspecific 

 with them. This was indicated in the list of species assigned to Coccometra at the time 

 that genus was established in 1908. 



In the Blake material turned over to him after Carpenter's death, Hartlaub found 

 a fragmentary specimen labeled Antedon cubensis which differed markedly from the 

 other two so labeled. He sent me the plate with the figure of this on it, and I wrote 

 him that it appeared to represent my Coccometra nigrolineata from Cuba and Porto Rico. 

 This information he published in 1912. 



In 1918, just 10 years after the name was first published, this species was finally 

 described and a summary of its range given. 



COCCOMETRA GUTTATA A. H. Clark 



[See vol. 1, pt. 1, figs. 376, p. 299; pt. 2, fig. 755, p. 349] 



Coccometra guttala A. H. CLARK, Unstalked crinoids of the Siboga-Exped., 1918, p. 218 (in key; range), 

 p. 219 (detailed description; Albatross Sta. 2134); The Danish Ingolf-Exped., vol. 4, No. 5, 

 Crinoidea, 1923, p. 41 (range); Mem. Soc. Cubana Hist. Nat., vol. 14, No. 2, 1940, p. 141 (in 

 key), p. 144 (references); Bull. U.S. Fish. Comm., vol. 55, 1954, p. 374 (listed). 



Diagnostic features. There is a large black spot on either side of each syzygia 

 pair; the cirri have 24 to 28 segments of which the fourth and following are greatly 

 elongated, 4 to 5 or more times as long as broad, and the terminal claw is straight. 



Description. The centrodorsal is small, hemispherical or subconical, with the 

 polar area rather small and papillose. 



The cirri are XXX-XL, 24-28, very slender, 25 mm. long. The first two segments 

 are short, the third is about half again as long as broad, and the remainder are four or 

 five times as long as broad, or even longer. The antepenultimate segment tapers 

 slightly from the proximal to the distal end. The penultimate segment is about half 

 as long as the antepenultimate, and tapers to the base of the terminal claw, which 

 itself is about half as long as the penultimate segment, perfectly straight, and tapers 

 to a sharp point. The cirri are perfectly smooth with no trace of dorsal processes on 

 the distal segments, nor of an opposing spine. 



The radials are just visible beyond the edge of the centrodorsal in the mid-radial 

 line, and extend upward in the interradial angles in the form of a triangle. The IBr, 

 are oblong, about two and a half times as broad as long, and are widely separated 

 laterally. The IBr 2 (axillaries) are almost triangular, with the posterior edge slightly 

 convex and the anterior angle long and acute; they are somewhat broader than the IBr^ 



The 10 arms are from 60 to 70 mm. long. The first brachial is wedge-shaped, 

 longer outwardly than inwardly, the inner sides in apposition basally. The second 

 brachial is similar, but rather larger and more irregular in shape. The first syzygial 

 pah- (composed of the third and fourth brachials) is approximately as long as broad. 

 The following brachials to the eighth are slightly wedge-shaped, not quite so long as 

 broad. The second syzygial pair (comprising the ninth and tenth brachials) is not 

 quite twice as long as broad. The succeeding brachials are obliquely wedge-shaped, 



