from the Persian Gulf, §c. I'd 



apertura oblonga, brunnescente, labro tenui, columella fere recta, 

 canali brevi. 

 Long. 31, lafc. 7 mm. (spec. maj.J. 



Hub. Persian Gulf, Bundo Abbas, and Bushire, 1906. 



Allied to T. spectabilis, Hinds, gouldi, Desh., and edgarii, 

 Melv. It diffeis from these by the very delicate interstitial 

 transverse striolations, the narrowed, somewhat straight 

 aperture, and want of ventricosity of whorl. T. edgarii 

 occurs in the same seas, and it is sometimes hard to differen- 

 tiate them. I am grateful to Mr. Edgar Smith for his opinion 

 as to their distinctness. 



Mangilia ichthys * sp. n. (PI. II. fig. 22.) 



M. testa parva, fusiformi, delicata, albo-cinerea ; anfractibus 7, 

 apicalibus tribus inclusis, quorum duo superiores bulbosi, albo- 

 lutei, laBves, tertio pulchre et minute crenulato, caeteris quatuor 

 sex-costatis, costis latis, continuis, expansis, omnibus ventri- 

 cosulis, ad suturas impressis, uudique pulcberrime et arctissime 

 spiraliter tenuistriatis ; apertura oblonga, labro extus perlato, 

 sinu lato, brevi, columella fere recta, basi haud producta. 



Long. 7, lat. 3 mm. (spec. maj.). 



Hub. Mekran Coast, off Astola Island, 90 fathoms. 



A very choice though small species, and rarely occurring in 

 shell-sand. The examples are dead, and the coloration is 

 therefore a matter of guesswork ; it is very probably pale 

 ashy brown in life. The ribs, six in number on each of the 

 four lowest whorls, are continuous with each other, broadened, 

 the upper whorls being semivitreous, the third crenulate. 



The only ally we can find is M. calcata~\, Hedley, an 

 equally rare species, only occurring, so far as is known, at 

 Hope Island, Queensland. It differs in several ways, particu- 

 larly in the sinus, which is not " an almost closed tube at top 

 of a bold varix," as in M. cahata, but broad, short, and 

 shallow, and not extending far towards the margin of the 

 outer lip. 



Mangilia querna\, sp. n. (PI. II. fig. 23.) 



M. testa parva, breviter fusiformi, pallide gilva vel straminea, 

 solid ula ; anfractibus 7, quorum duo apicales tumidi, lseves, cseteris 



* 'ixdvs, a fish, from the fish-like ribs. 



t Proc. Linn. Soc. N.S.W. 1909, vol. xxxiv. pt. 3, pi. xliv. fig. 90. 



X Quermcs, oaken, from tie colour. 



