130 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The single specimen from Blake station 210 is of medium size with 18 arms; 

 the division series are "wall-sided." 



Of the 6 specimens brought up by the Investigator from 508 meters off St. Lucia 

 5 were examined by Hartlaub; these are of medium size with from 17 to 20 arms. 

 One of them has the division series broadly "wall-sided." 



The single example from Blake station 216 has 17 arms; the division series are 

 broadly "wall-sided." 



The single example from Blake station 219 which was examined by Hartlaub 

 has 17 arms; the division series are laterally free with rounded sides. Two other 

 specimens each have 20 arms. 



The single rather small specimen from Blake station 287 has 11 arms, there being 

 a single IIBr 2 series present. As shown in Hartlaub's photograph the outer arm 

 arising from the IIBr axillary has the first syzygy between brachials 3+4, while 

 the inner arm has syzygies between brachials 1+2 and 3+4. The cirri are slender, 

 and according to Hartlaub resemble those of Leptonemaster venustus. The IB^ are 

 laterally entirely free. The pinnules of the lower portion of the arms are composed 

 of mostly cylindrical segments. The comb on the proximal pinnules is prominently 

 developed. The centrodorsal is flat and sharply pentagonal. There are paired 

 longitudinal dorsal stripes on the arms. Hartlaub called this specimen meridionalis- 

 pulchella. 



Of the 5 specimens from Blake station 296, 3 have from 11 to 15 arms and 2 have 

 from 16 to 20 arms. 



From Blake station 277 there are two 10-armed young, one 11-armed young, 

 and one 13-armed specimen of medium size. 



The 13-armed specimen is whitish with a fairly broad yellow longitudinal band 

 on the arms and yellowish brown syzygial pairs. The IBr series are broad, and the 

 IBr 1 are for the most part entirely in contact. The arms are smooth dorsally. The 

 cirri have 3 short basal segments. 



Four very young 10-armed specimens, 2 from Blake station 269 and 2 from Blake 

 station 277, already show variations similar to those seen in the adults. In 3 of these 

 the color is already the same as that seen in very many large specimens white with 

 brown bands on the arms and the centrodorsal and the parts immediately adjacent 

 brown. One of the specimens from station 269 is uniformly white. 



In spite of their small size the specimens have the IBri very close together, and 



1 from station 269, which has strong processes on the edges of the brachials, has the 

 IBr! already in lateral contact. 



In all the centrodorsal is gently convex. In the cirri only the first 2 segments 

 are short, the third and those immediately following being elongate. 



All the 4 specimens agree in having the arms narrow at the base and gradually 

 broadening toward the middle. 



Of the 3 specimens from Blake station 277 or 298, 1 has 15 arms about 65 mm. 

 long, 1 has 18 and 1 has 19 arms. 



From Blake station 298 there are 3 specimens, 1 with 20 arms about 75 mm. 

 long, all the IIBr series being present; 1 with 15 arms, 3 on each of 3 rays, 4 on 1, and 



2 on the fifth, about 60 mm. long (listed by Hartlaub as having 16-20 arms); and 1 





