NO. 2288. NEW MOLLVSKS OF THE FAMILY TURRITIDAE—DALL. 53 



subsequent whorls with a broad spirally striated anal fasciole fol- 

 lowed by two or three spiral cords strongest where they cross the 

 ribs and feebler in the interspaces; on the last whorl the cords are 

 less prominent, with about equal spirally striated interspaces, and 

 the cords continue becoming more close-set toward and upon the 

 canal to the number of 15 or more; axial sculpture of (on the last 

 whorl 10, excluding the terminal varix) protractively oblique ribs 

 extending from in front of the anal fasciole stronger on the peripherjr 

 and obsolete on the base of the whorl; terminal varix strong, th& 

 margin incurved smooth; the anal fasciole large, rounded; the lips, 

 callous with minute denticulations ; the canal short, deep, recurved, 

 the aperture rather narrow. Heiglit of shell, 10; of last whorl, 6; 

 diameter, 4 mm. Cat. No. 269030, U.S.N.M. 



Range. — Dredged at Santa Maria Bay, Lower California, Dr. Paul 

 Bartsch. 



GLYPHOSTOMA PARTEFILOSA, new species. 



Plate 17, fig. 4. 



Shell small, white, with pale brown spiral banding; nucleus small, 

 smooth, glassy, followed by six sculptured whorls; suture distinct, 

 the whorl with a shoulder immediately in front of it; spiral sculp- 

 ture only of about 13 threads, covering the canal when it is 

 not worn; axial sculpture of (on the last whorl 12) narrow, 

 slightly oblique ribs, arcuate at the shoulder, not continuous over the 

 spire and with wider interspaces; aperture narrow with a flaring 

 anal sulcus and no subsutural callus; pillar short, denticulate, outer 

 lip thickened, dentate within, canal short, recurved. Height of 

 shell, 11; of last whorl, 6; diameter, 4.5 mm. Cat. No. 224413, 

 U.S.N.M. 



Range.— ^Ofi Cape Tepoca, Gulf of California, in 36 fathoms, sand. 



GLYPHOSTOMA SIRENA, new species. 



Plate 17, fig. 3. 



Shell elongated slender, acute, waxen white clouded with light 

 brown, nucleus pointed, the first whorl minute, the next two enlarg- 

 ing, all smooth; subsequent whorls seven, at first with a peripheral 

 keel, later strongly ribbed and coarsely reticulated ; spiral sculpture 

 of a thread in front of the appressed and undulated suture, then, 

 on successive turns of the spire, two, three and four coarse cords, 

 with subequal interspaces between the fasciole and the suture, prom- 

 inent only when they cross the ribs and feeble in the interspaces ; on 

 the last whorl there are nine of these and a few smaller threads on 

 the canal ; the anal fasciole is smooth narrow and close to the suture, 

 undulated by the ends of the ribs; axial sculpture of (on the last 



