221 



posterior half of the 3"^ or dorso-lateral crest and the posterior half of the 4<'> or lateral several 

 granules, some of which in the middle show a tendency to fall into a line parallel with these 

 crests; in the same manner the granules that occur below the posterior half of the lateral crest, 

 are also partly arranged in a more or less distinct longitudinal line. For the rest in Bate's 

 figures 3 and 4 (1. c.) some granules are observed on the branchial region between the sub- 

 dorsal and dorso-lateral crests. All the specimens are covered everywhere between the ridges, 

 tubercles and granules with a close tomentum, which is not described by Bati', but for 

 the rest they fully agree with this author's description. 



In the adult specimens the large orbital and branchiostegal spines are of equal length 

 and the former is strongly curved inward; in the young female from Stat. 38 the orbital spine 

 is less strongly curved and decidedly shorter than the branchiostegal spine. The posterior moiety 

 of the dorso-lateral crest shows in the two adult females a trace of a tubercle, situated just 

 behind the middle, but in the young female from Stat. 38 it is more distinct; at the posterior 

 extremity of this crest one observes in the adult female from Stat. 74 another more conspicuous 

 tubercle, in the adult female from Stat. 38 this tubercle is not developed, but in the young 

 female from this Station it is distinct, in the male, finally, from Stat. 74 the posterior half of 

 the 3'"'^ crest appears along its whole length smooth and entire. The posterior half of the 4"' 

 or lateral crest presents in all the specimens quite posteriorly traces of two tubercles behind 

 one another, for the rest this crest, like the 3'''', appears smooth to the naked eye, though 

 slightly rugose or "worm-eaten", when looked at under the lens. In the young female from 

 Stat. 38 the posterior half of the dorso-lateral crest ends anteriorly in an obtuse angle, but in 

 the other specimens this tooth-like angle does not exist. The transverse furrow at the base of 

 the rostrum is conspicuous and deep. Hepatic region distinctly granulate. 



Like the carapace, also the abdomen appears much tubercular and granulate. The pleuron 

 of the 2"^ abdominal somite terminates inferiorly in two acute spines, which in the adult females 

 are of equal length, but the anterior is slightly broader than the posterior; in the male and 

 in the young female the anterior is a little longer and larger than the other; just above the 

 anterior spine the margin shows a small rounded prominence. In the two following pleura the 

 recurved anterior spine is a little longer than the posterior, in the pleuron of the s'"^ somite 

 the posterior spine appears distinctly longer than the anterior and both are recurved, while in 

 the two preceding pleura the posterior spine is straight, not recurved. In all the specimens the 

 four edges of the telson are finely serrate along the widened anterior third. 



The eyes of the two adult females are (in spirit) slate-coloured, those of the young 

 female from Stat. 38 are still brick-coloured, while in the male of medium size they are partly 

 slate-, partly brick-coloured. 



In the adult female and in the male from Stat. 74 the antennular peduncle is as long 

 as the antennal scale, in the adult female from Stat. 38 it reaches by one-third the terminal 

 joint and in the young female almost by the whole terminal joint beyond it. As usual the outer 

 flagellum appears in the male much broader than in the female. 



As results from B.\te's figure 3 the antennal scale appears somewhat angular at its 

 anterior extremity, not regularly rounded, and the present specimens agree with that figure, 



