50 



6"^ somite appearing here a little less high in proportion to its length. The telson, one and a 

 third to one and a half as long as the 6''> somite, reaches almost to the end of the outer 

 uropod and as far as or just beyond the inner; it is deeply channelled and bears a pair of 

 small spines at one-fourth of its length from the tip. The pleura of the i^' abdominal somite 

 present a transverse suture on its lower part; they are rounded posteriorly like the following, 

 except those of the 6''^ that are provided with a small spine at the postero-basal angle. 



Eyes rather large, black, reniform ; lamelliform plate on the upper face of the basal 

 joint longer than broad, subacute, its arcuate, inner margin fringed with hairs: 2"*^ joint of the 

 peduncle with a minute, conical tubercle at the inner side. 



Antennular peduncle measuring two-thirds the length of the carapace, without the rostrum ; 

 length of the 2"^ joint one-third that of the peduncle, this joint shorter than the t^', y^ joint 

 half as long as the 2"''. Flagella slender, as in So/. sipJionoccra, one and a half as long as 

 the carapace without the rostrum; both flagella, abruptly-acuminate at the tip, are compressed, 

 the longer upper flagellum that hardly narrows distally, flattened and half as broad as the 

 lower tha.t appears concave at the inner side and that distinctly is narrowed towards the tip. 



Basal joint of outer antennae with a small spine at the outer angle, antennal peduncle 

 as long as the eyes, flagellum 4-times as long as the body; scales 3-times as long as broad, 

 projecting as far beyond the antennular peduncle as the 3'^'^ joint is long; the obtuse, rounded 

 apex of the lamella extends beyond the small terminal spine of the straight outer margin. 



Second joint of the mandibular palp, that reaches to the base of the scaphocerite, twice 

 as long as the first; the second joint, pointed at the tip and with the outer margin concave, 

 is just half as broad as long. The exopod of the second maxillipeds, that resemble those of 

 Sol. Koelbeli (Koelbel, 1. c. fig. 5), reaches just beyond the middle of the merus. The third 

 maxillipeds extend with their dactylus beyond the apex of the antennal scales ; carpus a little 

 longer than the penultimate joint and one and a half as long as the dactylus; exopod not yet 

 reaching to the middle of the ischium. 



The pereiopods of the \^^ pair, armed with a strong, slender spine at the base and 

 with a similar spine on the ischium, reach to the distal fourth part or, as in the adult female 

 from Stat. 302, to the middle of the antennal scale; carpus a little longer than the merus, 

 chela more than half as long as the carpus; fingers 2,5-times as long as the palm; chela usually 

 more than 4-times as long as broad, sometimes, as in the adult female from Stat. 302, appearing 

 less slender. The 2'"^ legs, unispinose at base, usually project, in the adult, with one-fourth or 

 one-fifth of their carpal joints beyond the antennal scales; the carpus is one and a half as 

 long as the merus and more than 3-times as long as the chela. The 3''^ legs that are unarmed, 

 extend with more than half the length of their carpal joints beyond the antennal scales; the 

 carpi, almost twice as long as the meri, are almost 4,5-times as long as the chelae and near 

 their proximal extremity 3-times as thick as there where they are thinnest. Like the other legs, 

 also those of the 3'<^ pair are shorter in the adult female from Stat. 302, extending with less 

 than half the length of the carpal joints beyond the scales, and this is also the case in young 

 individuals. The legs of the 4"^ pair reach with their dactyli beyond the antennal scales; the 

 lanceolate dactyli, which, like the j^ropodi, are broadened, compressed and carinate in the middle 



5° 



