CHLORHAEMIDAE 163 



capillary, annulated. Ventral bristles behind the first few chaetigers simple, rarely 

 pseudo-compound, hook-like. Blood green. 



Skin densely papillated, ventral hooks stout, unstriated ... ... ... S. swakopianus 



Skin sparsely papillated, ventral hooks slender, narrowly striated S. kerguelarutn 



Stylarioides kerguelarum (Grube). 



Trophonia kerguelarum, Grube, 1877, p. 539. 



Mcintosh, 1885, p. 364, pi. .xliv, figs. 9-10; pi. xxiiJA, figs. 4-6. 



Stylarioides kerguelarum, Monro, 1930, p. 159. 



Augener, 1932 b, p. 113. 



Occurrence. St. WS 33 (i). 



Specific characters. Sparsely papillated on the dorsal and ventral surfaces, more 

 thickly between the feet where the papillae are long and finger-shaped. The bristles of 

 the first two feet go to form the cage. The dorsal bristles of the normal feet are long and 

 iridescent and spread fan-wise upwards and backwards. They are strongly segmented, 

 and as Mcintosh observes and figures the upper part of each segment is dilated distally. 

 The hooks are figured by Mcintosh ; they are much longer and more slender than in 

 S. plumosiis, and lightly and narrowly striated except towards the tip which is not 

 strongly hooked. There are about half a dozen of these hooks in each neuropod. They 

 begin at the 3rd chaetiger. 



The present specimen is small measuring only 10 mm. by 2 mm. at the widest part 

 for about 25 chaetigers. 



This species is distinct from iS. plumosus. The papillation dorsally and ventrally is 

 sparser, the hooks begin at the 3rd and not the 4th chaetiger and are much longer and 

 more delicate; and the dorsal bristles are much more markedly segmented. 



I have not seen Grube 's type, but this specimen and those from South Georgia 

 recorded in my 1930 report are conspecific with Mcintosh's Challenger specimens 

 which were collected at Kerguelen as was Grube's type. Augener {loc. cit., 1932 b) has 

 recorded S. plumosus from South Georgia. He claims that the Trophonia kerguelarum 

 of Ehlers (1897, p. 107 and 1901, p. 180) belong in fact to S. plumosus, but that the 

 Trophonia kerguelarum of Ehlers (1908, p. 180) from Kerguelen is a different species 

 with more slender ventral hooks. The latter is presumably the true kerguelarum of 

 Grube. He also suggests that the specimens from South Georgia attributed by me 

 {loc. cit., 1930) to S. kerguelarum belong to S. plumosus. In this he is mistaken. 



Stylarioides swakopianus, Augener. 



Augener, 1918, p. 433, pi. vii, fig. 234, text-figs. 61 and 62. 

 Monro, 1930, p. 159. 



Stylarioides xanthotricha, Ehlers, partim, 1908, p. 119, pi. xvi, fig. 2. 

 Occurrence. St. WS 4 (3). 



Specific characters. I have some hesitation in attributing these specimens to 

 Augener's species because both they and the specimens from Tristan da Cunha at- 

 tributed by me (loc. cit., 1930) in a previous report to Augener's species differ from 



D XII j^ 



