BIBLIOGRAPHY OF 1877. II3 



Dall (Prof. W. H.) — American Work in tlie Department 

 of Recent Mollusca during the Year 1879.— Am. 

 Nat., vol. xiv., No. 6, pp. 426 to 436. 



The most important work is considered to be the commence- 

 ment of publication of Tryon's Manual of Conchology. 



Important papers by Prof Brooks have appeared in the 

 publications of the John Hopkin's University on " The develop- 

 ment of Lingula and the systematic position of the Brachiopoda" 

 and " Preliminary observations upon the Marine Prosobranchiate 

 Gastropods." 



In the Am. Journ. Sci. xviii., No. 108, Dec. 1879, pp, 425 — 

 427, is another paper by same author, "Abstract of observations 

 upon the artificial fertilization of oyster eggs, and on the em- 

 bryology of the American oyster." 



Mr. W. H. Dall, in a paper to the Philosophical Society of 

 Washington, suggests the probable homology of the anterior pair 

 of muscles of the oyster with the pedal muscles of Dimyarians. 



Prof. Wetherby describes and figures the anatomy of LinuKza 

 niegasoma in the Journal of the Cincinnati Soc. of Natural Hist., 

 July, 1879. 



Prof Whitfield, at a meeting of the Boston Soc. of Natural 

 Hist, records that in specimens of the same species kept in 

 confinement, the male organs disappeared after several genera- 

 tions. 



Mr. W. G. Binney continues in Bull. Mus. Comp. Zool. v., 

 No. 16, p. 332, the description and figuring of the anatomy and 

 radula. About 30 species are examined. 



The Vitrina latissima Lewis is erected into a new genus 

 Vitiinizonites. A slug discovered by Mr. Gibbons in Natal is 

 described under the (preoccupied) name Chlaviydepliorus Gibbonsii. 

 Pupa cincinnatiensis is said to be synonymous with P. contrada, 

 Say and Tedula linda from Madeira is said to be viviparous. 



