1904.] NATURAL SCIENCES OF PHILADELPHIA. 



NEW JAPANESE MARINE MOLLUSCA : GASTROPODA. 



BY HENRY A. PILSBRY. 



The new species of Gastropoda contained in recent sendings from 

 Mr. Y. Hirase are herein described. The material studied contains 

 a large number of species previously not known from Japanese waters, 

 which I hope to enumerate in a future paper. 



Some shells from a collection made in Sagami Bay for the Academy, 

 by Miss A. C. Hartshorne, are also included in this account. 



TEREBRID^. 

 Terebra hedleyi n. sp. PI. I, figs, l, la. 



Shell slender, the length about 05 times the diameter, solid, whitish, 

 marked sparsely with brown dots on the cinguli and with streaks below 

 them, the last whorl with some dots or spots in a circular row on the 

 base. 



Sculpture consisting of a wide above a narrower tuberculate cord, 

 occupying somewhat more than half the total width of the whorl, 

 below these cinguli there are four small equal spiral cords, the lowest 

 one partly covered at the suture. On the last whorl these cords gradu- 

 ally diminish downward, those on the periphery and base being small 

 and very low or subobsolete. The growth-strise are oblique on the 

 cinguli, arcuate on the cords below them. WTiorls 15J, the first large 

 and globose, first l-i- smooth and gray-white. The last whorl abruptly 

 contracts below, and is produced in a short anterior canal. Aperture 

 small, irregularly rhombic, the outer lip thin and sinuous, columella 

 vertical, abruptly bent to the left below, covered with a glossy white 

 callous, which extends over the parietal wall. 



Length 33.6, diam. 6 mm.; length of aperture 6 mm.; diam. of the 

 first whorl 1 mm. 



Hirado, Hizen. Types No. 85,946, A. N. S. P., from No. 1,412 of 

 Mr. Hirase's collection. 



This species is related to T. serotina A. and R., and the closely allied 

 or identical T. mariesi Sm., but it is not costate below the tuberculate 

 bands, and the protoconch is very much larger. Named in honor of 

 Charles Hedley, of the Australian Museum. 



