PLATE XLIV. 



Fig. 37. Thah anihnstiiJatKs, H^illey. 



Figs. 38, 39, 4U. Front, base and back of Cassidula hilahiain, Hetlley. 



Fig. 41. Aty s jKilmarnm, Yie^WQy. 



Fi"s. 4-, 43. Gizzard of Philine amjam, Crosse and Fislier. 



,, 44, 45. Papuina nmensis, Hedley. 



