REPORT ON THE ANOMURA. 21 



Homologenus sp. {^:),juv. (PI. II. fig. 2). 



To this but slightly characterised genus I refer with considerable hesitation a small 

 and apparently immature specimen (PI. XL fig. 2). I have not, however, ventured to 

 assign a name to this, but merely indicate its more important features. 



Carapace ovoid, submembranous, with the regions fairly marked, terminating 

 anteriorly in three spines, the median being the rostrum, the lateral slightly longer and 

 more slender, situated one over the insertion of each eye. The gastric region bears a 

 few spinules, and a small spine is present on each branchial area. Eyes of moderate size, 

 the cornese dilated ; ocular peduncles short and moderately stout. The second segment 

 of the antennal peduncle is armed with a spine on its outer border. The external 

 maxiUipedes are slender, the merus is shorter than the ischium and without the dilata- 

 tion present in the species of Homola. 



Chelipedes long and slender, all the joints furnished with a series of spinules on the 

 upper and lower borders, and a few scattered hairs ; the fingers are incurved and bent 

 over one another at the tips. Ambulatoiy limbs long and slender, the dactyli but 

 slightly curved ; the last pair of small size and subdorsal in position. 



Abdomen narrow, composed of seven segments (including the telson) ; the second 

 to the sixth segment each with a pair of biramous appendages, all well developed 

 with the exception of the last pair, which form with the telson a small swimming 

 fan. 



The single example diflers from specimens of Homologenus taken by the " Blake " 

 and " Talisman " exj^editions, in the form of the abdomen and the larger eyes. It is 

 apparently very young, and exhibits a slight advance from the Megalopa stage ; possibly 

 it was captured in the surface or intermediate waters. The following are the measure- 

 ments : — Breadth of carapace 4*5 mm., length of carapace 5'5 mm., of chelipede 12 mm., 

 of longest ambulatory leg 24 mm. 



Habitat. — Station 196, ofi" Gilolo Island; depth, 825 fathoms; bottom, hard ground. 



Genus Latreillopsis, n. gen. 



Carapace rectangular, the surface irregular ; frontal region moderately wide, with a 

 median spiniform rostrum and a supraorbital spine on each side. Ocular peduncles with 

 the basal segment narrow, cylindrical, and elongated, the cornese dilated. Antennules 

 and antennae as in Homola. External maxillipedes similar to those of Homola, but the 

 merus more regularly four-sided. Chelipedes and ambulatory limbs slender, cylindrical, 

 and of considerable length, the last or subdorsal pair formed as in Homola, but exceeding 

 the chelipedes in length ; the dactyli smooth and remarkably slender. Abdominal 



