MAUIiELLA, 



205 



phores, as in figure. The penis is provided with a small kale-sac 

 and gives off a short cseciun ; the retractor muscle is attached to 

 the bend. 



The radula has a broad band of wider median teeth, tricuspid as 

 a rule, and these pass into bicuspid outer laterals, with the two 

 cusps subequal and terminal as in Girasia. 



From Crivania the present genus is separated b)^ its almost im- 

 perforate shield, the more solid shell of different form, and by 

 several small distinctions in the genitalia. 



[Fig. 71. — Mari(sUa clussumien. 

 Dark olivaceous-wreen specimen. 



A. Animal, view of right side and from above, x I'S. 



B. Siiell. xa-4. 



Black specimen. 



C. Genitalia. x2, 



C. Spermatopbore. x3'4. 



MaricBUa heddomei. 



D. Shell. Xl-S.] 



310. Marisella dussiimieri, Gray, Cat. Pulm. B. J/. 185.5, p. 63 



Fischer (^'ique.^nelia), Journ. Conchyl. 185G, p. 290, pi. 3, fig. 18 ; 

 Webb, Proc. Med. iSoc. iii, 1878, p. \o'd, pi. U, figs. J--0 (animal, 

 shell, and anatomy) ; CockereU, Nautilus, xii, 1898, p. 9 ; Godxoin- 

 Austi7i, Mai. Lid. ii, 1899, p. 113, pi. 93, figs. 1-1 e, 2-2 c 

 (animal, shell, and anatomy). 



