CURRENT LITERATURE. 



79 



Monstrosities receive a good deal of attention, and some remarkable 

 forms are figured, including specimens (see Figures 229, 230, 231) of Limnaca 



FiGL'KE 238. An orthostrophic sinistral shell as r/iiisa, showing 

 the heart at the base of the whorl. 



FliU'KE 239. Intermediate sub-discoidal sinistral shell. 



Figure 240. Discoid form as I'!anuibis. 



FuiUitK 241. Intermediate sub-discoidal pseudo-dextral shell. 



FldUllE 242. A hyperstrophic pseudo-dextral shell as I'uiiip/ioli.r. 

 The heart is now seen to be at spire side of 

 body wall. 



Diagrammatic figures showing in a conventional and simple way the changes from an 

 orthostrophic sinistral to a hyperstrophic pseudo-dextral one. 



pei'cgcy, probably deformed by the attachment of Hydra to the mollusc. The 

 figures illustrating hyperstrophy given above speak for themselves. 



W. M. W. 



Pilsbry, H. A. — Manual of C-jnchology, series i, part 62 (contains vol. xvi., 

 pp. 49-112, pis. 17-31) ; series 2, part 38 (contains pp. 49-96, pis. 16-25). 

 November, 1895. 

 Will be reviewed later. 



ANATOMY. 



Clubb, Joseph A. — " Notes on some points in the structure of the cerata of 

 Dcndi'onotus avhoresccns." Proc. and Trans. Liv. Biol. Soc, ix., pp. 220- 

 234, pis. xiv.-xv. 



Haller, B. — " Beitrage zur Kenntniss der Morphologic von Nautilus pom- 

 pilius." In Z06I. Forschungsreisen in Australien, Bnd. 5, lief. 2, pp. 

 187-204, pis. xi.-xii. 



Heymons, Dr. R. — " Beimerkungen zur der von v. Erlanger veroffentlichen 

 ' Etudes sur le developpment des Gasteropodes pulmones.' " Z06I. 

 Anz. Jahrg., xviii., no. 486, pp. 400-402. 



Kerr, J. Grahana. — " On some points in the anatomy of Nautilus pompilius." 

 Proc. Z06I. Soc, 1895, pp. 664-686, pis. xxxviii.-xxxix., figs. 

 The author concludes that the nearest living allies of the Cephalopoda are 

 to be sought for amongst the Chitons. He is drawn to this result from a 

 consideration, inttT alia, of the bilateral symmetry, the general relations of the 

 coelome and nephridia, and the fact that the eggs are developed within 

 follicles. 



Owsjannikow, Ph. — " Die Blutkorperchen der Flusskrebse (A. ftuviatilis et 

 A. leptodactylus) und der Teichmuschel (Anodonta) ." Bull. Acad. Imp. 

 Sci., St. Petersbourg, ser. v., tome 2, pp. 365-382, pi. 



