114 THE NAUTILUS. 



(himingiamm is a large, well-marked species and was excel- 

 lently figured by Reeve. It was the first of the more-widely 

 umbilicated Philippine species to be described and is not likely 

 to be confounded with any of its contemporaneous species. 



The characteristic specimen figured is from the MacAndrew 

 collection (Coll. Walker, No. 46916) and measures: alt. 39.7, 

 diam. 30.5 mm. Another with it measures: alt. 36.5, diam. 

 29 mm. This specimen has its operculum, which is of the 

 characteristic javanirm type. 



The specimen figured by Bartsch (Pr. U. S. N. M., XXXII, 

 1907, pi. X, fig. 7) is apparently immature as it measures only 

 alt. 17.1, diam. 14.8 mm. 



Autoptically unknown to Frauenfeld, von Martens and Ko- 

 belt, the first two express no opinion in regard to it, but the 

 latter (Con. Cab., Viviparidae, 1908, p. 273) thinks that it is 

 probably a thick-shelled variety of V. contains (Q. and G.); but 

 that view is not tenable. 



VII. 

 ViviPARUS ANGULARis (Miiller). PI. VIII, figs. 4-5. 



iVmto an^fw^m Miiller. Hist. Verm., II, 1774, p. 187. 



Helix ang^u/aWs Chemnitz. Con. Cab., IX, 1786, p. 160, pi. 

 134, figs. 1222-1223. 



Miiller' s description of his Nerita angularis is as follows: 



* ' Nerita testa imperforata, virescente, anfractibus spirallter angu- 

 latia, fau'ce alha. 



' ' Cochlea virginiana e Jlavo viridescens non fasciata. ' ' 



"List. Syn. t. 127, f. 27. 



"Dan. Kant-neriten 



long. 12 lin. lat. 6 lin. 



' ' Testa opaca, conica, glabra virescens striis traiisversis subtillimis, 

 spiralibus tribus in singulo anfractu elei'atis, acutis. Anfractus 

 quinque prope perpendiculares. 



' ^Apo'tura retundata, ad anfradum vicinum in angulum prodvxta. 

 Foramen vel umbilicus nidlus. Faux calcarea. Striae spirales in 

 quibusdam evanescunt. 



^^ Figura Listeri nostri.s major ^ caeterum refert. In Jlumine 

 Chinensi emporium Canton aUuente. ' ' 



