Ill 

 5. Sphaeronella Leptocheiri n. sp. 



(PL XIII, fig 3 a— 3 e.) 



FEMALE. The only specimen found (fig. 3 a) was 76 mm. long and 64mm. broad; 

 its head somewhat exceeding middle size, the trunk almost globular. On the sub-median 

 skeleton of the head (fig. 3 c) there are no hairs at the articulation either of the maxillae 

 or of the maxillipeds, but a few hairs are found (though not drawn in the illustration) at 

 the base of the inner side of the basal joint of the maxillae. The trunk is naked, except a 

 comparatively small area behind the median part of the head, which is provided with a 

 number of extremely short and fine hairs. Genital area (fig. 3 d) much as in S. Atyli, but 

 the anterior extremities of the genital apertures come much nearer to each other, and the 

 ring is somewhat narrower. The distance between the caudal stylets is very great, and 

 between the stylets and the posterior margins of the area it is rather considerable; the 

 whole area and its surroundings are naked. 



MALE. Length -20 mm. (fig. 3e). The shape a little more clumsy than in S. elegan- 

 tula; the median frontal plate of medium length, its lateral margin somewhat converging, 

 but the anterior angles are acute and a little produced. The trunk-legs a little longer, 

 or at least not shorter, than the long terminal seta. 



OVISACS. I have only found an incomprehensible abnormity, viz. the outer mem- 

 branes of two ovisacs, one of them containing only one single egg, the other a large and a 

 small one; otherwise they were empty bags. 



LARVA and POST-LARVAL DEVELOPMENT. Unknown. 



HABITAT. In the marsupium of a Leptocheirus guttatus G-rube, taken by me near 

 Siracusa on rocky ground, twelve to twenty-five fathoms, in June 1893, were found: one 

 female, two males and the two just mentioned, nearly empty membranes of ovisacs. (The 

 host is determined by the Rev. Th. R. R. Stebbing). 



6. Sphaeronella messinensis n. sp 



(PL XIII, fig. 4 a-4 c.) 



FEMALE. The only specimen found (fig. 4a) was -44 mm. long and -32 mm. broad; 

 the body sub-ovate, the head proportionally large and the trunk scarcely longer than broad. 

 In fig. 4 b are shown some hairs at the base of the inner side of the basal joint of the 

 maxillae, and on the sub-median skeleton a row of hairs in front of the anterior inner angle 

 of each maxilliped. The trunk quite naked. The genital area (fig. 4 c) of similar shape to 

 il Kit of S. elegcmtula, consequently much broader than long, the larger part solidly chitinised; 

 distance between the genital apertures moderately great, but they are turned so much that 

 their inner and front extremity advances only very little beyond the posterior extremity, the 



