Description of the Species 



Phylum Mollusca. 



Class GASTROPODA. 

 Family Actaeonidae. 



Genns SOI.l]>l.lL,A. Fischer von Waldheim. 



1. Solidula strigosa (Gonkl). 

 PL I. Fig-. 1. 



SoUdida stfitjona. Pilsbry, Cat. Mar. Moll. Japan, p. (3. Tryon, Man. Conch., vol. XV, 



p. 137, pi. XX A, figs. 60, 61. 

 Biiccimilus strigosus. Gould, Proc. Bost. Soc. Nat. Hist., VII, p. 141. Otia Coucho- 



logica, p. 114. 

 Toniatella stri<josa. Liselike, Jap. Meeresconcb., II, p. 104, pi. V, figs. 12^ 13. 

 Buccinulus fmterculus. Danker, Ind. Moll. Mar. Japon., p. 161, pi. XIII, figs. 21-23. 

 Solidula fratercula. Pilsbry, Cat. Mar. Moll. Jap., p. 6. 



A small rather solid shell, ellipsoidal in form, and Avith whorls 

 which number between five and six. The spire is short, being less 

 than one-fourth the height of the shell. The surface-sculpture 

 consists of fine, impressed and punctured, spiral lines which num- 

 ber four on the penultimate and about twenty-five on the ultimate 

 Avhorl. A fine interstitial line is also present, most conspicuous on 

 ■the lower half of the last whorl. Of the two columella-fokls which 

 are present, the upper is weak and simple, while tlie lower is strong 

 and bilobed, the'lobes being generally nearly equal in size. 



All of the four specimens which were obtained are a trifle 

 broader than tliose described by the above authors. The largest 

 measures ll.T.millim. in height and 5 millin]. in diameter. 



The shell »described by Dunker as Buccimilus Jraterculvs is 

 surely identical with Gould's species. 



Fossil occurrence : — Otake and Shito. 



Living : — Central, Western and South era Japan. 



