326 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



On one arm arising from a IBr axillary P! is 10 mm. long with 21 short seg- 

 ments; on another it is 15 mm. long with about 35 segments; thus P! is rather vari- 

 able. Only one, three-edged, P D with 30 segments is present; the first 12 to about 18 

 segments, except for the basal, are strikingly broad and keeled. In this pinnule about 

 six of the proximal segments are thick, strongly broadened, and at first narrowly, 

 but from the third or fourth onward more broadly, keeled. In this, as in other respects, 

 it resembles P D in the second Martinique specimen of granulifera, without being wholly 

 in agreement with it. PI on arms arising from IIBr or IIIBr axillaries is very variable, 

 in individual cases about 10 mm. long with about 20 segments. In general the pinnules 

 following decrease in length and in the number of their component segments to about 

 P 4 . The pinnules of the middle of the arm are unfortunately very poorly preserved; 

 a few uninjured ones are 4-6 mm. long with 12-14 segments, often only 9 or 10, of 

 which the two first are short, triangular, the next two or three broadened over the 

 gonads and quadrangular, and those following elongate. On the single postradial 

 series on which they may be made out the distal pinnules become longer again and, 

 except for the first two segments, are very slender, about 9 mm. long with 13-15 

 segments. 



The ambulacra! plating consists of prominent side and covering plates. The 

 sacculi are rather large and conspicuous. The disk is about 12 mm. in diameter, dark 

 brown, and deeply incised. 



In alcohol the centrodorsal is dark gray brown, the rest of the skeleton lighter and 

 gray. 



Locality. Blake station 45. 



Geographical range. Northwest of the Dry Tortugas, Florida. 



Bathymetrical range. Between 731 and 1,097 meters. 



Thermal range. One record, 5.0 C. (at 1,097 meters) ; this is undoubtedly too low. 



CRINOMETRA BREVIPINNA Tar. GRANULIFERA (Pourtales) 



[See vol. 1, pt. 2, figs. 304, 305, p. 223, fig. 674, p. 335.] 



Antedon granulifera POTJRTALES, Bull. Mus. Comp. Zool., vol. 5, No. 8, 1878, p. 215 (description; 

 Blake station 45). P. H. CARPENTER, Challenger Reports, Zoology, vol. 26, pt. 60, 1888, p. 241 

 (in key), p. 380 (Caribbean Islands; 101-120 fathoms [Blake stations 45 and 157]). HARTLATJB 

 (in part), Mem. Mus. Conip. Zool., vol. 27, No. 4, 1912, p. 298 (redescriptiou ; Blake stations 34, 

 45, 101 [but not the second specimen from Martinique, which is gemmata]), pi. 1, figs. 24, 25, pi. 

 5, figs. 1, 2, 4, 6, 10-13, pi. 12, figs. 2, 6, 7. 



Charitometra imbricata A. H. CLARK, Proc. U. S. Nat. Mus., vol. 34, 1908, p. 266 (new name for 

 Antedon granulifera P. H. Carpenter, [erroneously] supposed not of Pourtales; specimen with three 

 consecutive pinnules on the same side, with no locality given). 



Crinometra granulifera A. H. CLARK, The Danish Ingolf-Exped., vol. 4, No. 5, Crinoidea, 1923, p. 40 

 (range). H. L. CLARK, Mem. Soc. Cubana Hist. Nat., vol. 15, No. 1, 1941, p. 9 (Atlantis stations 

 2999, 3303, 3465, 3478, 3482). 



Description. Hartlaub redescribed Antedon granulifera on the basis of two much 

 broken specimens and a detached disk from Blake station 45, apparently the type ma- 

 terial of Pourtales, and two very mediocre specimens with detached arms from Blake 

 station 34. The two better specimens together with various pieces of arms and a 

 calyx from off Martinique also regarded by Hartlaub as representing granulifera are 

 herein referred to var. pulchra. 



