Bartsch — New Marine Mollusks from the Philippines. 185 



the base. Aperture of irregular outline; posterior angle acute, decidedly 

 channeled anteriorly; outer lip reinforced within by a strong callus; inner 

 lip provided with five oblique folds which grow successively weaker from 

 the posterior anteriorly; parietal wall covered by a rather thick callus. 



The type and another specimen of this species, Cat. No. 231,946, U. S. 

 N. M., were given to the writer by Father Arnalot, at Davao, Mindanao. 

 The type has lost the nuclear tip. The ten whorls remaining measure: 

 altitude, 35.5 mm.; greater diameter, 15 mm. Another specimen, Cat. 

 No. 231,937, U. S. N. M., was also collected at Davao, Mindano, by 

 Dr. Mearns. We have seen two additional specimens of this species in 

 the Hon. Jaime C. de Veyra's collection from the Philippines, without 

 specific locality data. 



This species is a member of the Mitra ferruginea Lamarck complex. It 

 differs from that species by having all the sculpture, both axial and spiral, 

 much more feebly expressed, and the aperture proportionately larger. 



Turricula weberi, new species. 



Shell of medium size, elongate conic, tip dark with a narrow dark zone 

 at the suture and a broad dark band extending from the periphery over 

 the posterior half of the base. This dark band really consists of two 

 darker elements separated by one of about equal width, of a little lighter 

 shade. Nuclear whorls decollated. Postnuclear whorls moderately 

 rounded, feebly shouldered at the summit, marked by strong, well rounded 

 axial ribs, of which eighteen occur upon the first and second of the re- 

 maining turns in the type, twenty upon the third to sixth, and eighteen 

 upon the penultimate turn. These ribs are almost vertical and are about 

 as wide as the spaces that separate them on the early turns, while on the 

 last turn they are much less so. In addition to the axial ribs the entire 

 surface is marked by strong incremental lines. The spiral sculpture con- 

 sists of strong incised spiral grooves which run equally strongly over the 

 intercostal spaces of the ribs and give to the latter, particularly in the 

 last turn, a somewhat granular appearance. Of these incised spirals, 

 a single only occurs upon the first two turns, while upon the third two are 

 present; the fourth contains three, the fifth seven, the sixth eight, which 

 is also the number between the summit and the periphery on the last turn. 

 On this they are equally spaced, while on the other turns the spacing is 

 irregular. Periphery of the last whorls well rounded. Base slightly con- 

 tracted in the middle, the anterior half marked by the continuation of the 

 axial ribs, and twelve incised spiral lines which equal those on the spire in 

 strength, but are not as regular in spacing. The anterior half of the base 

 is marked by a strong keel in its middle, the prominent portion of which 

 is almost parallel to the third columellar fold. In addition to this, there 

 are five strong spiral cords posteriorly, and three anteriorly. Aperture 

 of irregular outline, posterior angle acute, decidedly channeled anteriorly; 

 outer lip thin, somew y hat sinuous; inner lip reflected and appressed to the 

 base, forming a narrow umbilical chink at the extreme anterior end, pro- 



