NO. 2134. NOTES ON CHRYSODOMVS—DALL. 233 



This very elegant species belongs in the group of B. stuarti Edgar 

 Smith, of the west American fauna, and is subject to the modifica- 

 tions of sculpture which I have elsewhere discussed in this genus. 



ANACHIS BARTSCHII, new species. 



Shell small, polished, wdiite, with (on the upper whorls one, on 

 the penultimate whorl two, and on the last whorl one near the 

 suture, two at the periphery, and three to five on the base) narrow 

 brown spiral lines; between the peripheral pair on the ribs is a 

 series of squarish, nearly black spots, about eleven on the last whorl, 

 but sometimes a rib is skipped; whorls seven, spire acute; nucleus 

 white, small, smooth, blunt, of a whorl and a half; axial sculpture 

 of eleven or twelve rounded, nearly vertical, equal and equally 

 spaced ribs, with subequal interspaces, extending from the suture 

 well beyond the periphery; spiral sculpture of a few faint striae 

 near the end of the canal; behind the outer lip is a slight varicose 

 swelling; aperture less than half the length of the shell; outer lip 

 thickened, with a sharp edge, internally with four small denticula- 

 tions; body erased, pillar smooth, canal short, rather deeply sinuous, 

 the axis minutely pervious. Length of shell 8 ; of la'fet whorl 4.7 ; 

 of aperture 3; maximum diameter of shell 3.5 mm. 



Habitat. — Mazatlan, Mexico. Dr. Paul Bartsch. Type in United 

 States National Museum, Cat. No. 265463. 



This is one of the prettiest species of the group from the Gulf 

 region. The painting recalls that of A. azora Duclos, from the 

 Mauritius, but the latter has strong denticulations on the pillar lip. 



LEPETA (CRYPTOCTENIDIA) LIMA, new species. 



Shell large for the genus, ovate, with a convexly arcuate back, the 

 apex one-fourth the total length from the anterior edge, the anterior 

 slope straight or slightly concave; sculpture of concentric close-set 

 sharp slightly elevated lamellae over-running numerous narrow, ele- 

 vated, clean-cut threads which radiate from the apex to the periphery 

 with equal or wider interspaces, and scaly at the intersections; the 

 sculpture is uniform over the whole surface and rasplike to the 

 touch; shell white, usually discolored by a ferruginous coating 

 externally, the interior bluish white, more or less translucent. Length 

 of shell 37 ; width 30 ; height of apex above the base 10 mm. 



Habitat. — Nemuro, Yesso, Japan. Hirase collection. U. S. Nat. 

 Mus. Cat. No. 274074. 



This is sharply distinguished by its size and rasplike surface from 

 any of the other species. The name Gryptobranchia having been 

 used by Gray, thirty years before Middendorff's application of it to 

 the present group, I substitute Cryptoctenidia. 



