CURRENT LITERATURE. II 



Davenport, C. B. — Studies in Morphogenesis. I. On the develop, of the Cerata 

 in .Jiolis. Bull. Mus. Comp. Zool. Camb., U.S.A., 1893, pp. 141-8, 2 pits. 



D'Hardivillier, A. — Sur quelques fails que permittent de rapprocher le system 

 nerveux central des Lamellibranches de celui des Clasteropodes. Comptes 

 Rend us, 1893, ^'*^^- cxvii., pp. 250-2. 



Fischer, H. — Note sur quelques points de 1' histoire naturelle du genre Eiitro- 

 chatella, P. Fischer (Trochatella, Swainson, 1840, non Lesson, 1830). 

 Journ. de Conchyl., 1893, PP- 85-89, pi. iii. 



Godwin-Austen, H. H. — On the Molluscan genus Paryphanta, and on the 

 anatomy of P. hochstetteri, Pfr. I'roc. Malac. Soc. Lond., 1893, vol. i., 

 pp. 5-9, pi. i. 



P. hochstetteri, Pfr.. is very closely allied to P. busbyi. Gray, in this paper 

 the anatomy is carefully described, and illustrated by thirteen figures. Its 

 affinities with Testacella and Schizo^s^lossa are dwelt upon, and for the three genera 

 Paryphaiita, Ehea, and Schizoglossa, the author proposes a new sub-family 

 Parvpkaittinu. Further researches into the affinities of these genera and of the 

 Testacellida:, will no doubt result in grouping them all under one family. 



Fig. 16 is of 7". iitauqei, we think, although the form of the receptaculum 

 seminis and duct looks more like that of T. scuttiliim. The author in a foot-note 

 (p. 7) states : " I took it to be T. haliotidea" It "shows a close convolution of 

 the vas deferens for a short distance, and just where it first becomes a free tube." 

 On the plate and in the explanation it is given as T. maugeil — -W. E. C. 



Hedley, C. — On Pannacochlea fischeri. Smith. Macleay Mem. Volume, 1893, 

 pp. 201-4, pi. xxvii. 

 This interesting species was described by Mr. Edgar A; Smith in 1884 

 (P. Z. S. , p. 273, pi. xxiii. ). Mr. Medley's specimen was one-third larger than 

 the original "Challenger" specimen, measuring — in spirit — 27 millim. He shows 

 that Tryon is wrong in associating Vitrma aiistralis. Reeve, with this species, the 

 former not at present being known to inhabit Australia. The mantle lobes, though 

 more grown together than in Helicarion, have not become fused as in Cvstopclta. 

 A somewhat lengthy account is given of the raduia. The shell and internal 

 structure are liriefly described and figured. The convolutions of the vas deferens 

 are very numerous, and form an intricate mass spread along the base of the duct 

 of the receptacular seminis. " The chief peculiarities of the mollusc under 

 discussion are : the unccjiling of the whorls and the insertion of the intersutural 

 supplementary plate of the shell, the partial atrophy of the mantle lobes, the 

 numerous convolutions of the vas deferens, and the sac developed in the penis 

 near the origin of its retractor muscle. The resemblance, both external and 

 internal, of J'arntacochlea to Helicarion calls for its classification beside that 

 genus in the sul)-family Helicarioniiicc, whilst the differences between them clearly 

 entitle it to generic rank. The abnormal shell induces me to support a descent 

 and divergence from some form very simikir to Helicarion robust lis, Gould." 



Kohler, August. — Beitrage zur Anatomic der Gattung .Sip/wiiaria. Zool. 

 Jahrb. , 1893, Bd. 7, pp. 1-92, pis. i.-vi. 



Metcalf, M. — Contributions to the Embryology of Chiton. Stud. Biol. Lab. 

 John Hopkins Univ., 1893, '^^1. v.. No. 4, 2 pits. 



Oswald, Ad. — Der Riisselapparat der Prosobranchier. Jen. Zeit. f. Nat., 1893, 



Bd. xxviii., pp. 119-62, T. v.-vi. and woodcuts. 



Plate, Ludwig H. — Studien iilier du Opisthopneumonische Lungensehnecken. 

 Zool. Jahrb., 1893, Bd. 7, pp. 93-234, T. vii. -xii. 



Stauffacher, Heinrich. — Eibildung and Furchung bei Cyclas cgrnea, I.. Jen. 

 Zeit. f. Nat., 1893, Bd. xxviii., pp. 196-246, T. xi.-xv. and woodcuts. 



Vayssiere, A. — Etude zoologiques du Weinkaiiffia diaphana. Journ. de Conchyl., 

 1893- PP- 90-97. pl- i^- 



