386 A. SEDGWICK. 
epithelial position, but cause the ovary to project in the form 
of follicles into the body-cavity (exogenous ovary, Fig. 4). 
11. Ova minute, ‘04 mm. in diameter. 
12. Embryo provided in its young stages with a trophic 
vesicle, within which it lies. 
13. Uterine embryos of 
round. 
14, Unpaired part of vas deferens long and complicated. 
all ages and born all the year 
Fie. 4. WG, Be 
Fic. 4.—Horizontal section through the ovarian tubes of P. trini- 
dadensis. (After penal ) rs Peritoneum traversed by trachee. 
2. Tunica muscularis. Germinal epithelium. 4.. Tunica propria. 
Fie. 5.—Ventral view ao one of the posterior legs of a male P. 
Sedgwicki! Bouv. (After Sedgwick.) Z. Papille of crural glands. 
2. Coxal organ. ‘There are two “papillae on the anterior side of the 
distal part of the foot and one on the posterior. 
iy Spermatophores elongated and with a thick case; 
often only one is present. 
16. Skin pigment brownish, extracted by alcohol. The 
pigment appears to be dissolved out by the alcohol, which 
becomes tinged with brown, but the colour soon fades. 
* See footnote on p. 384. 
