1901.] MOLLUSKS FROM THE PERSIAN GULE. 393 



Ttjebonilla (Pyegostelis) oharbaeensis, sp. n. (Plate XXII. 

 fig. 22.) 



T. testa aciculata, Icete rufa, delicata ; anfractihus 12, quorum 

 apicales duo vitrei, Icevissimi, heterostrophi, cceteris arete longi- 

 tudinaliter costatis, costis Icevibus, interstitiis spiraliter sulculosis, 

 apertura ovata ; labro, simul ac columella, simplici. 

 Long. 6, lat. 1'50 mm. 



Hah. Charbar, Mekran Coast, 7-10 fathoms. 

 Of the same characteras the European T. rufa Phil., but smaller, 

 and the ribs are continuous beyond the periphery in our species, 

 not evanescent as in rufa. Whorls 11 or 12, the two apical being 

 glassy, vitreous, sinistral, the remainder closely longitudinally 

 ribbed, ribs smooth, interstitially spirally striate. Eight examples 

 were dredged, all precisely similar. 



TUEBONILLA EMILIA Melv. 



I. Bombay {Abercromhie). 



TuRBONiLLA LiNJAiCA sp, u. (Plate XXII. fig. 23.) 

 T. testa delicatissima, angusta, aciculata, perg radii, omnino rufa, 

 vel rarius rufo-albescente ; anfractihus 9-10, quorum apicales 

 duo, heterostrophi, vix pieUucidi, rufl vel albi, cceteris suhventri- 

 cosis, arete longitudinaliter recticostatis, costis in penidtimo ad 

 viginti, acutis, nitidis, interstitiis pulcherrime et arctissime 

 spiraliter strialis ; peristomate continuo, tenui ; columella rufa, 

 pavMum ohliqua. 

 Long. 4, lat. '75 mm. 



Hah. Linjah, Persian Grulf. 3| fathoms, sand. December 1900. 



Very distinct, though so minute ; being usually entirely rufous, 

 though some examples are almost white, with rufous tinge alone 

 on the body-whorl. It is one of the smallest Turbonillce yet 

 described, and remarkably graceful in contour. The ribs are nearly 

 straight, acute, crowded, the spaces intervening being seen, with a 

 lens, to be exquisitely closely striatulate : mouth ovate ; peristome 

 continuous. It bears no close resemblance to any other Eastern 

 species known to us. 



TUEBONILLA MANORS Melv. 



I. Karachi. 



TURBONILLA SOEORIA Melv. 



P.G. Gulf of Oman, 250 fathoms. 



Lat. 24° 5' N., long. 57° 35' E. 205 fathoms, sand and mud : a 

 var. more slender and flattened than the type. 

 I. Karachi, rare. Bombay (Ahercromhie). 



TuRBONiLLA STEGASTRis \ sp. n, (Plate XXII. fig. 24.) 

 T. testa gracili, attenuata, alba ; anfractihus novem, apicali vitreo, 

 mamillato, heterostropho, caiteris longitudinaliter arcti-coslatis, 



^ (TreyacTTpis, a weaver. 



