522 J. R. Henderson — Some "Investigator" Paguridse. TXo. 3, 



Length of carpus of right chelipede ... ... ... 45 mm. 



„ „ hand of right chelipede ... ... ... 7 ,, 



„ „ eye-stalk ... ... ... ... 4 „ 



Although there is only a single specimen, I have ventured to 

 describe this species on account of its well marked characters, more 

 especially the peculiar type of granulation met with on its chelipedes, 

 which distinguishes it from all other members of the genus with which 

 I am acquainted. 



Genus Ptlopagurus, A. Milne-Edwards and Eouvier. 



"Blake" Paguridse, Mem. Mus. Comp. Zool. (Harvard Coll.) Vol. XIV. No. 3. 

 p. 74 (1893). 



I refer the species described below with some hesitation to this 

 genus, as it does not possess the characteristic lid-like right chela, 

 used as a kind of operculum to close the shell, which is one of the 

 special features of Pylopagurus. The hand is not ovate in form, and it 

 can be fully extended, yet at the same time it is capable of being bent 

 at a right angle to the carpus, a character mentioned by Milne-Edwards 

 and Bouvier. It has the general appearance of an Eupagurus, and 

 I would have referred it to that genus but for the arrangement of the 

 abdominal sexual appendages, which present the very unusual char- 

 acters described for Pylopagurus. There is a single pair of minute 

 appendages in the female immediately behind the last thoracic sternum, 

 while corresponding paired appendages are entirely absent from the 

 male. 



7. * Pylopagurus magnimanus, n. sp. 



Station 166, off the Madras Coast, depth 133 fathoms. A female 

 (damaged) in a Bostellaria shell. 



Station 169, off the Madras Coast, depth 107 fathoms. A male in 

 perfect condition, but without a shell. 



The anterior portion of the carapace is slightly calcified, and 

 practically eight-sided in outline ; it is separated from the surrounding 

 regions by deep grooves. The median frontal projection is well-marked, 

 with a broad base and a sub-acute apex ; the lateral frontal projections 

 are fairly well-marked, and some distance behind each there is a pit 

 on the dorsal surface of the carapace. The eye-stalks are moderately 

 slender, and faintly compressed from above downwards ; the cornea? 

 are rather pale in colour. The ophthalmic scales are well-developed, 

 entire and acute, the apical half of each scale being slightly depressed. 

 The antennal peduncles exceed the eye-stalks by about one-half the 

 length of their terminal joint ; the acicle is strongly curved, with a 

 fringe of hairs on its inner margin. The external prolongation of the 

 * 111. Zool. Investigator, Crustacea, pi. xxxi, fig. 2 (tti preparation). 



