1 J4 LITTORINID^!. 



var. sulcatula [? L. sulcatula, n. sp.]. 

 Reeve, Jig. 61 A, as L. undulata, var. 



5 Ascension Island, Pacific ; coll. H. Pease, Esq. 



37. Littorina newcombi. 



Littorina newcombi, Reeve, Iconica, fig. 28, 1857, Sandwich Islands ; var, 

 =L. ambigua, Reeve, fig. 64 [not of Philippi=L. intermedia]. 



6 Sandwich Islands ; coll. H. Pease, Esq. 



Fischer records the species from New Caledonia, but I should 

 imagine this form would rather be a variety of L. intermedia, 

 if indeed the two species can be kept apart ? Von Martens in 

 the Donum Bism. considered L. ambigua as a synonym of L. 

 pintado ; this can hardly be the case. 



Reeve, fig. 64, as L. ambigua, Philippi, Sandwich Islands. 

 10 Sandwich Isl. j coll. Prof. W. Newcomb. 



38. Littorina varia. 



Littorina varia, Sowerby, Genera of Shells, 1823, fig. 4, Panama. 

 10 Panama ; coll. Profs. W. Newcomb and E. C. Stearns. 



39. Littorina fasciata. 



Littorina fasciata, Gray, ZooL, Beechey's Voy., 1839, Peru. 

 10 Panama; coll. Profs. W. Newcomb and E. C, Stearus. 



40. Littorina angulifera. 



Phasianella angulifera, Lamarck, Hist. VII, 1822, Antilles;- L. scabra, 

 Orb. [not of Lin.~\ ; sect. Littorinopsis. 



10 Florida ; coll. Prof. E. C. Stearns. 

 4 Panama; coll. Prof. W. Newcomb. 

 1 Guadaloupe ; ex c. Prof. VV. Newcomb. 



