336 PROCEEDINGS OF THE NATIONAL MUSEUM. vof.. 5(! 



TRITONALIA TURRITA. new species. 



Shell large, solid, short in proportion to its width, of four or more 

 whorls, the apex defective; white with strong ])rown spiral cords; 

 suture strongly appressed, with a whitish band in front of it, undu- 

 lated by the ribs; axial sculpture of eight strong short ribs beginning 

 at the shoulder and extending over the peripjier}^, but stronger at 

 the shoulder, the whorl being somewhat constricted behind them; 

 spiral sculpture of (on the last whorl nine) strong, dark brown spiral 

 cords, undulated by the ribs and minutely laraellose; there may be 

 also some lesser intercalary threads; aperture rounded, outer lip 

 much thickened, internally white with half a dozen denticulations 

 within; inner lip white, concavely arcuate, erased; pillar short, 

 thick; canal short, open, slightly recurved, with an obvious fascicle. 

 Height of shell (decollate), 84; of last whorl, 28; of aperture, 20; 

 diameter at decollation, 4; maximum diameter, 21 mm. U. S. Nat. 

 Mus. Cat. No. 34517. 



Type-locality. — San Quentin Bay. Lower California; collected by 

 L. Belding. 



Though the specimens are worn this is clearly distinct from the 

 known species. The late Dr. R. E. C. Stearns proposed the above 

 name but never described the shell. 



Genus TROMINA Dall, 1918. 



This name was proposed for the curious little shell from the Magel- 

 lanic region named in 18G8, by Philippi, Fusiis unicarinatus. This 

 has the nucleus of a Trophon and is probably related to the austral 

 Trophons, but the soft parts are not known. It is more fully dis- 

 cussed in my paper of 1902.^ 



Genus NEPTUNEA (BoUen) Dall, 1902. 



I showed in 1902 - Nvhile discussing the synonymy of the genus 

 Chrysodomus that the latter genus was named and a type designated 

 many years before anyone attempted to restrict and name a type for 

 the heterogeneous collection included under the name Nevtunea by 

 Bolten. Herrmannsen, in 1847, correctly inchcated Trophon (in the 

 wide sense of that day) as the equivalent of Neptunea but named no 

 type. Typical Trophon had been segregated by Montfort in 1810, 

 the onl}^ other Trophon in Bolten's list is the type of Sars' Boreotrophon 

 (clathrus) 1878. It is therefore obvious that Neptunea must bo 

 restricted to the boreal Trophons and Sars's name be relegated to 

 synonymy, as I showed by the method of elimination in 1902. 



» Proc. U. S. Nat. Mus., vol. 24. No. 1264, p. .iSfi, March, 1902. 

 » Idem, pp. 520-521. 



