1 



802 PROCEEDINGS OF THE NATIONAL MUSEUM. vouxxm. 



authors, but not of Cuvier, 181T, after Poll, 1791. Type, Lucina eden- 

 tula Linn feus. 



Shell inflated, thin, concentrically striated, anterior and posterior 

 dorsal areas obsolete; lunule deep and narrow, no visi})le escutcheon; 

 ligament and resiliuni deeph' inset but not occluded; margins entire, 

 anterior adductor scar long, hinge wholly edentulous, shell usually 

 large. ^ 



The following subgenus nm' be admitted: 



Loripinus Monterosato, 1883. Type, Litcina frag ills Philippi (= Z. 

 edentula Brocchi, not Linna'us), Mediterranean. 



Shell small, with the ligament obsolete and the resiliiun wholly 

 internal; the anterior adductor scar short and wide, otherwise like 

 Lucina. 



The following are the American species: 



LUCINA CHRYSOSTOMA (Meuschen) Philippi, 1847. 



Bermuda, South Florida, the West Indies, and northern coast of 

 South America, in moderate depths of water. 



This is Tellina crywstoma Meuschen, 1787, and Venus edentula 

 Chemnitz, 1784; Anodontia alha Link, 1807; Lucina chri/sosto/na of 

 Philippi, 18-1:7, and Morch, 1853. 



It is the Lucina edentula of Reeve, 1850, and many other writers, 

 but Hanley has shown that the Linn{«an edentula (1758) was probably 

 that named by Reeve L. ovuni^ an oriental form described by Forskal 

 under the specific name of (jlvho.^ta (1776), and Avith which, according 

 to von Martens (1880), L. pila Reeve is synonymous. 



LUCINA PHILIPPIANA Reeve, 1850. 



Cape Ilatteras, North Carolina; Bernuida, and southward through 

 the West Indies; Japan ^. 



This is the L. edentula Philippi, 1847, not Linnaeus, 1758, and the 

 L. schramnvi Crosse, 1876. It varies sutticiently in its outline and 

 convexity to suggest, in the absence of a series, that the student is 

 dealing with more than one species. 



A young vahe of this species in defective condition ma}' I )e the shell 

 identitied by Smith in the Challenger })ivah es from near Berumda as 

 Lucina harhata of Reeve, an identification Mr. Smith regards as 

 doubtful. 



LUCINA EDENTULOIDES Verrill, 1870. 



Magdalena Bay, Ijower Califoi'iiia. and in the Gulf of California. 



It is Ln'ipes edcntuloides Verrill, 1870, and possibly Avas the shell 

 intended by Carpenter when he cited a Licina capax from Panama, to 

 which I have not been able to find any other reference in tiie literature. 

 This species is very similar to the West Indian form, but difl'ers by its 



