412 MESSES. MELVILL AND STANDEE ON [June 18, 



Nassa (TJzita) nodicincta A. Ad. 



P.G. Gulf of Oman : Maskat. 10 fathoms, amongst coral-sand. 

 Is recorded from the Galapagos Islands. 



Nassa (Niotha) albescens Dkr. 



Var. fenestrate Marr. 

 P.G. Elphinstone Inlet, very large. Jask. Maskat, sand and 

 beach. 



M.C. Ormara. 2 fathoms, sand. 



Nassa (Niotha) angriasensis, sp. n. (Plate XXIII. fig. 13.) 

 N. testa ovato-globosa, apicalibus attenuatis, solidula, alba, 

 stramineo- et branneo-fasciata ; anfractibus 8, quorum apicales 

 quatuor Iceves, apud medium unicarinati, subpellucentes, cceteris 

 leniter gradatis, ad suturas impressis, arete noduloso-cost ukti i '■< 

 et cancellatis, interstitiis Icevibus, nodidis infra, juxta suturas, 

 magnis, nitidis, penxdtimo et antepenultimo anfractu unifasciatis, 

 ultimo tribus fasciis brunneo-stramineis decorato; apertura ovrrta ; 

 labro percrasso, dlbo, nitido, extus erenulato, intus deeemdenti- 

 culato; columella nitida, paullum effusa, supra univaricosa,versus 

 basim tridenticidata ; canali brevi, crasso, paullum recurvo. 

 Long. 10*50, lat. 6 mm. 



Hab. Angrias Bank, Arabian Sea (Copt. Tindall). 

 Allied most nearly to N. margmulata Lam., from which it can 

 be differentiated by its globose form, unicarinate protoconch, larger 

 sutural spiral nodules or gemmae, more elaboration of peristome, 

 and better defined denticulatious within ; the characters of sculp- 

 ture, generally speaking, and of banding and coloration being 

 identical. 



Nassa (Niotha) gemmtjlata Lam. 



P.G. From 5-50 fathoms, often found attached to the Cable. 

 In the Gulf of Oman it was dredged, lat. 24° 55' N., long. 57° 

 59' E. ; 37 fathoms, sandy mud-bottom. 



I. Lat. 18° 58' N., long. 71° 45' E. ; 40 fathoms. Semi- 

 pellucid and fine-grained. 



Nassa (Niotha) kieneri Desh . 

 I. Karachi. 



Nassa (Niotha) r avid a A. Ad. 



M.C. Very rare, without precise locality. 



Nassa (Niotha) sordida A. Ad. 



P.G. On Cable. I. Karachi. 5 fathoms, sandy mud. 



Nassa (Niotha) stig-maria A. Ad. 

 P.G. Gulf of Oman, Maskat. 



I. Karachi, on hard sandy mud and coral-gravel. 

 Var. adamsiana Marr. 

 P.G. Kais (or Gais) Island. 14 fathoms. 



