162 



setae; the other stylet is wanting; the whole area is naked. (In flg. 6e to the front the 

 two receptacula semiuis are indicated by dotted lines). 



MALE. The only specimen found is tolerably large in proportion to the female 

 (fig. 6b : flg. 6a); it is 21 mm. in length, but on account of pressure it is somewhat crooked, so 

 that the normal shape of its body cannot be precisely determined. The frontal border is rather 

 considerably produced, its margin very long, somewhat emarginate in the middle and forming 

 on each side of this inward curve a gently convex margin, which on its upper, as well as its 

 lower side, is] provided with a narrow border of numerous short (in the drawing a little 

 too short) setaceous processes; further, across the lower side of the front a little in advance 

 of the rostrum, runs a long, straight, very narrow list, which almost reaches the lateral 

 margin, and which is armed with a series of very small conical processes. Antennulae 

 small, terminating in a setaceous point and with only a single, moderately long seta, which 

 no doubt is olfactory. Antennae wanting. Mouth-border with long hairs. Anterior principal 

 branch of the maxillulae developed only as a somewhat protruding rounded corner ; the hindmost 

 principal branch extremely short, tap-shaped; additional branch wanting. Maxillae small, 

 all tlu-ee joints entirely fused together, with no vestige of articulation, but the general 

 outline of the maxilla nearly as in S. dispar , however, its distal part is very slender and 

 terminates in a point. Basal joint of the maxillipeds a little more than medium length, not 

 swollen, smooth; on its anterior side near the apex it has a large process, the basis of which 

 is constricted, while the remaining part forms an oval knot parallel with the outline of the 

 joint; second and third joints are fused into a single short joint with a short and broad 

 terminal seta, whereas the last joint is very short, broad and flattened, with denticulated 

 terminal margin. Nearly on a line with the anterior angle of the base of the maxilipeds 

 are seen, close to each other, two small, short, conical processes, whereas other processes 

 are wanting; but inside of and beliind the posterior angle of the maxillipeds are found 

 peculiarly shaped lists. The lateral margin of the head developed as in the two preceding 

 species; from the base of the antennida it is furnished with rather long hairs, and from 

 the posterior angle of the margin, as far as I have been able to see, the boundary of the 

 hairy part runs upward and somewhat obliquely backward across the side and the back. 

 The trunk, on its back, its sides and the posterior half of its ventral surface, is covered 

 with long hairs; the anterior half of its ventral sui'face is naked. Trunk-legs and caudal 

 stylets wanting. 



OVISACS. Those that have been found are rather small (flg. 6 c), yet, as each of 

 them contains six or seven nearly or fully developed larvae, they must be considerably larger 

 than when they were laid. The ovisac represented is '34 mm. in length and -27 mm. in 

 breadth. 



LARVA. Though very similar to those of the nearest preceding species, it presents 

 various good characters (flg. 6g). Length of the body ab. 21 mm. The cephalothorax is 

 an oblong oval, a little narrower than in the two last-mentioned species. The front has a 



