1901.] NATURAL SCIENCES OF PHILADELPHIA. 387 



Hirado, Hizen, western Kiusiu (Mr. Y. Hirase). Types No. 

 80,475 Coll. A. N. S. P., from 688a of Mr. Hirase's collection. 



Near M. fuscoapicata E. A. Smith, but it has more and shallower 

 spiral sulci in the intervals between the ribs, which are fewer in 

 number; it is smaller, the upper two plaits of the columella are 

 not grooved, and the coloration is somewhat different. M. yotoensis 

 and J\L collinsoni have more numerous ribs. In adult specimens 

 of M. hizenensis the latter third of the last whorl is smooth, the 

 costse disappearing. 



Mitra (Costellaria) vanattai n. sp. PI. XXI, fig. 28. 



Shell rather slender, solid, brownish- olive, with a wide dark- 

 brown baud below the periphery, and a light brown line at the 

 shoulder, the base brown. Surface rather glossy, sculptured with 

 rounded longitudinal ribs, as wide as the smooth concave intervals, 

 14 in number on the penultimate whorl, obsolete on the latter half 

 of the last whorl ; the attenuated base sculptured with spiral coids, 

 the largest continuous with the upper plait of the columella, those 

 below it (about 4) progressively smaller; a few small spirals above 

 the large cord. Whorls remaining 8 (the apex being eroded), 

 somewhat convex. Aperture bluish and finely lirate deep within, 

 purple brown toward the white-bordered thin lip. Columella with 

 5 plaits, the upper strong, not grooved. Length 17, diam. 7, 

 longest axis of aperture 8 mm. 



Hirado, Hizen (Mr Y. Hirase). Types No. 80,470, from 6886 

 of Mr. Hirase's collection. 



This species was sent with the preceding, from which it is easily 

 separated by the want of spiral sculpture between the ribs. Some- 

 what allied to M. semisculpta, but it differs in the smooth intervals. 

 M. analogica Reeve has fewer plaits, according to the description. 



MURICIDJE. 

 Tritonidea submenkeana n. sp. PI. XXI, fig. 24. 



Shell short-fusiform, very solid and strong. Sculptured with 

 longitudinal ribs, 12 to 15 in number on the last whorl, the last 

 rib very much larger, forming a large, swollen varix behind the 

 lip; crossed by spiral cords which are low in the intercostal spaces 

 but rise and widen into transverse, oblong, glossy tubercles where 

 they cross the ribs; the penultimate and earlier whorls having 



