82 PERCY SLADEN TEUST EXPEDITION. 



37. Turbo {Senectus) setosus, Gmel. 

 Loc. Seychelles : Praslin I. 



A very abundant species in this locality. 



38. Turbo {Senectus) turslcus, Reeve. 



Turbo tursicus, Reeve, Couch. Icon., Turbo, sp. 60. 

 Tu7-bo turcicus, Sowerby, Thes. Conch., Turbo, p. 200, pi. 8. fig. 75. 



Turbo tursicus. Philippi, Conch. Cat. editio ii. p. 83, pi. 19. fig. 5; Smith, Rep. Voyage H.M.S. 

 ' Alert,' p. 504, pi. xliv. figs. U-TJ= (1881). 



Loc. Providence I. : Station D 4, 50-78 fathoms. 



A rare species, the type coming from the Philippines. Allied to T. spiiiosus, Chem., 

 but smaller, more elaborately sculptured, and of different colour-pattern. 



39. Lej)tothijra gardinerl, sp. uov. (Plate 5. fig. 6.) 



X. testa anguste umbilicata, solida, turbinata, incrassata, albido-straminea, radiatim 

 brunneo-suffusa ; anfractibus 5-6, gradatulis, quorum 2^ apicales minuti, caetcris 

 undique fortiter costulis spiraliter prseditis, duabus praecipue conspicuis, quarum 

 superior regularitcr maculata, circa ultimi anfractus peripheriam, interstitiis 

 toruatis, obscure longitudinaliter striatulis ; apertura rotunda, alba ; peristomate 

 incrassato, albo, contiuuo, extus multi-crenulato. 

 Alt. 65, lat. 7 mm. 

 Loc. Coetivy I. 



A compact species, of the section to which L. amnssitata, Gould, pilula, Dkr., and 

 ponsonbyi, Sowb., belong. It is much smaller than the first-named, far more pronounced 

 in sculpture than the second, while it differs from L. ponsonbyi in its quadrate whorls, 

 in marking, and in the nature of its spiral riblets or carinse, which are somewhat 

 irregular in size and relative distance from each other, but strong on the whole, and 

 pronounced, tornate, the interstices longitudinally striate, the last whorl suffused with 

 brown, while on the upper of the two more particularly conspicuous spiral keels at the 

 periphery regularly placed dark brown spots are seen. The spire is gradate, mouth 

 round, white ; peristome thickened, much crenulate without, continuous, white ; 

 umbilical perforation narrow. 



40. Leptothyra roseocincta, v. Mart. 



Leptothyra roseocincta, E. von Martens, Molluskeu der Mauritius und der Seychellen, p. 294, 

 Taf. 20. fig. 22, 



Loc. Cargados Carajos : Station B 2, 31 fathoms, among Lithothamnia- and weed- 

 rubble. 



A brightly-painted little shell, hitherto supposed to be endemic in Mauritius only. 



