N0.2i288. NEW MOLLUSKS OF THE FAMILY TURRITIDAE—DALL. 



some very faint indications of spiral striae near the canal. There are 

 in all seven whorls less inflated and with a less constricted fasciole. 

 Height of shell, 7; of last whorl, 4; diameter, 2.5 mm. In other re- 

 spects similar to the preceding. Cat. No. 1227996!, U.S.N.M. 

 Range. — Same as the preceding. 



? CYMATOSYRINX LALAGE, new species. 



Plate 20, fig. 3. 



Shell small, pinkish white, polished, acute, with a smooth nucleus 

 of about two whorls and five subsequent hardly rounded whorls; 

 spiral sculpture of a few obscure threads on the canal ; suture obscure, 

 strongly appressed ; anal fasciole slightly constricted ; axial sculpture 

 of (on the penultimate whorl nine) strong rounded ribs most promi- 

 nent at the periphery, extending from suture to suture, with subequal 

 interspaces, obsolete on the last half of the last whorl and on the 

 base ; incremental lines irregular, obscure ; there is a hump-like varix 

 some distance behind the outer lip ; aperture narrow, anal sulcus con- 

 spicuous, rounded, with a heavy subsutural callus ; outer lip thin with 

 no internal lirae, moderately produced ; inner lip callous, pillar short, 

 thick, canal wide, very short, hardly differentiated from the aperture. 

 Height of shell, 8 ; of last whorl, 5 ; diameter, 3 mm. Cat. No. 55491, 

 U.S.N.M. 



Range. — Gulf of California, Stearns collection. 



This form is somewhat intermediate between KyUx and Cymato- 

 ayrinx. 



CYMATOSYRINX PLICATELLA Dall. 



Plate 20, fig. 4. 



Clathurella pUcatelJa Dall, Bull. Mus. Comp. Zool., vol. 43, No. 6, p. 289, 

 Oct. 1908. 



Range. — Station 2799, in Panama Bay, in 29| fathoms muddy bot- 

 tom; U. S. Bureau of Fisheries steamer Albatross. 



Type-specimen.— Csit. No. 110604, U.S.N.M. This shell is smaller 

 ■than most of the forms referred to this group, but appears to have 

 all the proper characters, though in miniature. 



? CYMATOSYRINX FERMINIANA, new species. 



Plate 8, fig. 4. 

 Shell white, with a yellowish base, slender, acute, with a swollen 

 smooth white nucleus of about two whorls and six subsequent whorls ; 

 suture appressed, on the earlier whorls the posterior edge is prom- 

 inent ; whorls moderately rounded ; spiral sculpture absent from the 

 spire, on the last whorl hardly visible except on the extreme anterior 

 base and siphonal fasciole where there are a few impressed lines; 

 axial sculpture of (on the last whorl 12) somewhat sigmoid ribs, 

 feebly arcuate on the anal fasciole, strongest in front of it, rather 



