92 THE VOYAGE OF H.M.S. CHALLENGER. 



impressed line on its inner surface (seen to a lesser extent in other members of the 

 genus) and the lower and distal margin is produced into a serrated lobe, the upper surface 

 is faintly granular, and bears a raised line parallel to and adjoining the anterior border ; 

 the carpus is about two-thirds the length of the propodus, and its upper surface is uniformly 

 granular and pubescent, a few granulations are also present on the lower surface ; the 

 proj)odus is considerably dilated and its upper surface is glabrous, a number of granu- 

 lations with a tendency towards linear arrangement exist over the greater part of this 

 surface, but towards the lateral borders these are replaced by short crowded spinules, with 

 hairs interspersed, the lower surface is smooth and polished, a few granulations and hairs 

 being merely present towards the lateral margins, the immobile finger is not bent at an 

 angle to the lower margin of the hand ; the dactylus is slightly more than half the total 

 length of the propodus, while its upper surface is pubescent, and covered with short crowded 

 tubercular spinules, the opposed edges of the fingers are provided with short hairs and a 

 few small irregular teeth. The left chelipede has its joints unarmed though pubescent, 

 the upper surface of the carpus being specially hairy, the hand is but little dilated, and 

 the fingers are more than half the total length of the propodus. The ambulatory limbs 

 are smooth and unarmed, the dactyli are remarkably long and slender, being nearly twice 

 the length of the propodi, and a series of corneous setae is present on the anterior border 

 near the apex. The last two pairs of legs are smooth and moderately pubescent, 

 especially towards the terminal joints. 



The penultimate abdominal segment bears a cruciform impression ; the terminal 

 segment is obscurely bilobed. 



Length of body 22 mm., of right chelipede 18 mm., of left chelipede 13 mm., of third 

 right leg 26 mm., of ocular peduncle 3 mm. 



Habitat. — Station 167a, off New Zealand; depth, 10 fathoms; bottom, mud. A 

 male specimen. 



Parapagurus gracilis, n. sp. (PI. X. fig. 3). 



Characters.- — The anterior ^Dortion of the carapace is smooth and moderately convex, 

 submembranous towards the middle, with the lateral surfaces calcified, and each 

 traversed by an oblique line which passes outwards and backwards from the submem- 

 branous part, the frontal projections are scarcely evident ; the two cervical grooves form 

 an evenly rounded line ; the posterior portion is entirely membranous. 



The ocular peduncles are .stouter than is usual in this genus, with a few hairs on the 

 upper surface and a faint reddish band still evident along each lateral surface, the corneas 

 are shghtly dilated and of rather large size ; the ophthalmic scales are broad towards the 

 base, but acute and spinulous at the apex. The antennal peduncle scarcely exceeds the 



