1890. ] Record of American Zoology. 355 
singleyi from Texas. Notes were given on synonomy and dis- 
tribution of Helix (Microphysa) hypolepta, Zonites dallianus, 
Zonites singleyanus, Pecilozonites bermudiensis, and Hydrobia 
monroensts. 
Peck, J. T—On the Anatomy and Histology of Cyméuliopsis 
calceola, J. H. U. Circ., VIIL., p. 32, 1889.—Preliminary account. 
WATASE, S.—On a new phenomenon of cleavage in the ovum 
of the Cephalopod. J. H. U. Circ., VIII, p. 33.—Preliminary 
account of segmentation in Loligo pealei. 
Honc, C. F.—A study of the oyster beds of Long Island 
Sound with reference to the ravages of starfish. J. H. U. Circ., 
II., p. 102, 1889. 
RYDER, Jons A.—The Byssus of the Young of the Common 
Clam. Am. Nart., XXIII., P. 65, 1889. 
RYDER, Jonn A.—Notes on the Development of Ampullaria 
depressa. Am. Nart., XXIII., p. 735, 1889. 
Pirssry, H. A.—The radula in Rhipidoglossate Mollusca. 
Proc. Phila. Acad., 1889, p. 136. 
CRUSTACEA, 
LEIDY, JOsSEPH.—A parasitic copepod. Proc. Phila. Acad., ` 
1889, p. 95.—Describes as new Chalimus tenuis from Leptoceph- 
alus. 
Brooks, W. K. and Herrick, F. H—A preliminary abstract 
of researches on the life history of Stenopus. J. H. U. Circ., 
VIII., p. 29, 1880. 
Hay, O. P. and W. P.—A contribution to the knowledge of 
the genus Branchipus. Am. Nart., XXIII., P. 91, 1889. 
Kines.ey, J. S—The development of Crangon vulgaris. Third 
paper. Bull. Essex Inst., XXI., p. 1, 3 plates, 1889. (See Am. 
Nat, XXIII, p 737.) 
Anprews, E. A——Autotomy in the Crab. Am. Nart., XXIV., 
p. 138, t890. 
Herrick, F. H.—The development of the compound eye of 
Alpheus. Zool. Anzeiger, XIL, p. 164, 1889.—Eye arises as 
thickening of ectoderm, thickened by immigration and delamina- 
tion; differentiates into two layers: 1. Outer retinogen. 2. 
