204 



Figure 



3 m. Larva which was attached to the female shown in lig. 3 b, its skin is burst along the lateral 

 margins, and it contains a fully developed male, X 184; «■ antennula of the larva, h. olfactory 

 seta of the antennula, s. viscous substance proceeding from the front of the male. 



3 n. Right maxilla and maxilliped with a part of the sub-median skeleton of the larva shown in 

 fig. 3 a as attached to the carapace of Er. ahyssorum and marked I. ; the organs are seen 

 from below, X 330; h. sub-median skeleton. 



PLATE XIII. 



(Supplements to pi. II, III and X.) 



1. Homoeoscelis mediterranea n. sp. 



1 a. Female, X HO. 



1 b. Male, X 110. 



1 c. Ovisac, X 110. 



1 d. Head of female, X 312. The short hairs on the lateral margins omitted. 



1 e. Genital area and its surroundings of female, X 322; the receptacula scminis are indicated by 

 dotted lines; on the orifice of one are attached a spermalophore and the basal part of the 

 stalk of another spermatophore, on the orifice of the other are seen parts of the stalks of 

 two spermatophores. 



1 f. Male seen from below, X 230. 



1 g. Male seen from left side, X 230. 



1 h. Full-grown larva seen from left side, X 297. Most of the natatory legs omitted. 



2. Sphaeronella danica n. sp. (Supplement to fig. 4 on pi. II.) 



2 a. Genital area and its surroundings of a scarcely half-grown female, X 216. 



3. Sphaeronella Leptocheiri n. sp. 



3 a. Female, X 36. 

 3 b. Male, 36. 



3 c. Head of female, X 165. 



3 d. Genital area and its surroundings of female, X 216; e. solidly chitinised ring, </. genital aper- 

 tures, in. muscles, r. receptacula seminis, t. caudal stylets. 



3 e. Outline of a part of a male seen from below, showing the jjrocesses of the sub-median 



skeleton, one maxilliped, the legs on the right side and the caudal stylets, X 276. 



4. Sphaeronella messinensis n. sp. 



4 a. Female with two spermatophores, X 62. 

 4 b. Head of female, X 214. 



4 c. Genital area of female, X 274. The receptacula seminis are indicated by dotted lines, and a 



spermatophore is attached to the orifice of one. 



5. Sphaeronella irregularis n. sp. 



5 a. Female with three spermatophores, X ^l- 

 5 b. Ovisac, X 41. 



