90 HALIOTIS. 



H. jacnensis Reeve, Conch. Icon., t. 17, f. 73. — Sowerby, Thes. 

 Conch, v, p. 28, f. 48. — H. jacnaensis Eve., Weinkauff, Conchyl. 

 Cab., p. 70, t. 27, f. 2. 



H. echinata Sowerby. PI. 4, fig. 13. 



Shell small, ovate, depressed, brown, concentrically roughened; 

 sculptured with strong spiral lira? over spiny-scaly wrinkles ; 

 marginal area roughened and having three spiny ribs ; spire rather 

 prominent, acuminate ; holes upon tubular tubercles. Small, oval, 

 depressed, dark-brown, concentrically wrinkled, sculptured with 

 strong spiral ridges forming squamose spines on the wrinkles, mar- 

 ginal area with three rows of spines. Unique in Mr. Hanley's col- 

 lection. (Soivb.) 



Habitat unknown. 



H. echinata Sowb. Thes. Conch, v, p. 18, f. 124. 



This seems closely allied to H. stomaticeformis, but is of a more 

 oval form, both sides equally curved. Contrary to Mr. Sowerby's 

 surmise, it has nothing to do with H. gigantea. 



H. exigua Dunker. PI. 49, figs. 36, 37, 38. 



Shell small, ovate, plane, channelled in the middle, spirally 

 densely striate and lirate, obsoletely plicated ; provided with five 

 open, close, somewhat tubular round holes; apex a little prominent; 

 spire small, sublateral ; inner lip flat ; area between margin and holes 

 costate and canaliculate. Color grayish, variegated with reddish, 

 brown or scarlet ; nacre vividly iridescent. (Dkr.) 



Length 22 mill. Japanese Seas. 



H. exigua Dunker Mai. Bl. 1877, p. 69 ; Ind. Moll. Mar. Jap., 

 p. 148, t. 6, f. 8, 9, 10, 1882.— Not H. exigua Dkr. in Mus. Godeffroy 

 Cat. v, p. 148 (only a name) or of Weinkauff, Conchyl. Cab., p. 

 29, t. 13, f. 2, 3, 1883. 



I have not seen this little species. It differs from those with 

 which it is here grouped in showing a larger spire-cavity inside, on 

 account of its less latei-al spire. The H. exigua of Weinkauff is 

 quite a different thing. 



H. elevata Sowerby. PI. 4, figs. 14, 15. 



Shell obliquely subtrapezoidal, Stomatia-shaped, greenish, broadly 

 banded with green toward the angle ; spirally elevately lirate, line 

 scaly. Spire elevated, coppery ; whorls obtusely angular. Having 



