62 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



PHILBERTIA CRYSTALLINA Gabb. 



Plate 13, fig. 1. 



Clathurella crystallina Gabb, Proc. Cal. Acad., vol. 3, p. 184, 1865. 

 Clathurella lotcei Dall, I'roc. Biol. Soc. Wa.sh., vol. 16, p. 172, 1903. 



Range. — Santa Barbara Channel, California, in 40 fathoms. 



PHILBERTIA TRICHODES, new name. 



Plate 19, fig. 3. 



Plcurotoma Jiirsutnm De Folin, M61§agrinicoles, p. 59, pi. 5, fig. 16, 1867 ; 

 not of Bellardi, 1847. 



Range. — Panama Bay. 



The figure does not show the acute projection of the nodes. 



MANGILIA (CLATHROMANGILIA) LEVIDENSIS Carpenter. 



Plate 21, fig. 1. 



Mangelia levidcnsis Carpenter, Proc. Acad. Nat. Sci. Phila. for 1865, p. 63, 

 April, 1865. 



Range. — North end of Nunivak Island, Bering Sea, and south to the 

 Aleutians and Puget Sound. The specimen figured is Cat. No. 

 133239, U.S.N.M. 



Carpenter's types from Neeah Bay and Puget Sound were badly 

 Avorn, imperfect specimens, hardly identifiable. The color of the 

 fresh shell is dark brovrn, and the sculpture on the last whorl in 

 senile specimens is often more or less obsolete. 



MANGILIA (CLATHROMANGILIA) RHYSSA, new species. 



Plate 21, fig. 3. 



Shell small, brownish, coarsely sculptured, with six whorls exclu- 

 sive of the (lost) nucleus; suture appressed, someAvhat constricted, 

 obscure; upper whorls with two prominent cords crossing the ribs 

 without nodulation, the last whorl with six, the spiral sculpture more 

 prominent than the axial, which consists of (on the last whorl 10) 

 straight axial ribs continuous to the base; tliere are traces of sonie 

 fine spiral striation; the interstices of the reticulation are deep and 

 squarish ; sutural fascicle obscure, the sulcus very shallow, the aper- 

 ture short with hardly any canal and no denticulations or lirations. 

 Height of shell, T; of last whorl, 4; diameter, 2 mm. Cat. No. 

 55479, U.S.N.M. 



Range. — Gulf of California, Stearns collection. 



MANGILIA (KURTZIELLA) GYRENE, new species. 



Plate 21, fig. 5. 



Shell minute, waxen white, nucleus A^ery small, of one and a half 

 smooth whorls, rapidly enlarging, folloAved by a minutel,y reticu- 

 lated turn, of which the sculpture gradually merges into that of the 



