MUSEUM OF COMPARATIVE ZOOLOGY. 225 



PLATE VIL 



All the figures drawn by T. D. A. Coekerell, excepting I, which was drawn by 

 Miss Annie Roberts. 



PLATE VIII. 



Figure C was drawn by F. W. Earl, from life ; A, from life, by W. G. Binney ; 

 B, D, G, I, from life, by T. D A. Coekerell ; E, F, H, were restored by Mr, Coek- 

 erell from specimen in spirits 



Fig. A. Phenacarion foliolatus, natural size ; the tail eaten off. 



Fig. B. Internal shell of A. 



Fig. C. The same, var. Hemphilli, natural size. 



Fig. D. Limax Hewstom ; in motion and at rest. 



Fig. E. " Hemphilli ; same views as last, and surface. 



Fig. F. " hyperboreus ; same views as last. 



Fig. G. " montanus ; same views. 



Fig. H. " occidentalis ; same views. 



Fig. I. " Heivstoni ; a larger individual. 



PLATE IX. 



Figures A, B, C, D, G, H, were drawn by W. G. Binney ; E, F, by T. D. A. 



Coekerell; I, J, by Arthur F. Gray. 



Fig. A. Jaw of Hemphillia fiandulosa. 



Fig. B. Jaw of Phenacarion foliolatus. 



Fig. C. Lingual membrane of same; one central tooth, with its adjacent lateral 



and three extreme marginals. 

 Fig. D. Genitalia of same ; one half of natural size, 



ov. ovary. 



ovid. oviduct. 



t. testicle. 



g. b. genital bladder. 



p. s. penis sac. 



v. d. vas deferens. 



