MOLLUSCA. 41 



25. MANGELIA, Leach. 



1. Mangelia tkivittata. PI. X. Kg. 9. Mang. testa subtrigono-fusiformi, spira breviuscula, 

 acuta, anfractibus superne angulatis, longitudinaliter costatis, costis ad angulum nodulosis, interstitiis 

 concavis, transversim sub lente subtilissime striatis ; albida, rufescente pallide trivittata. 



Hab. Island of Mindoro, Pliilippines. 



This appears to be distinct from any of the many pretty species of Mangelia collected 

 by Mr. Cuming in the same locality, and described in the ' Conchologia Iconica,' 



26. FUSUS, Lamarck. 



1. Pusus gracillimus. PI. VII. Pig. 1. Pus. testa, gracilliino-fusiformi, undique spiraliter sulcata 

 et lirata, anfractibus rotundatis, longitudinaliter plicato-costatis, costis latiusculis, medio uuicariuatis, 

 labrum versus evanidis ; castaneo-fuscescente. 



Hab. Eastern Seas. 



Nearest allied to the F. longicauclaius, from which it may be readily distinguished. 



2. Pusus spectrum. Pus. testa, elongato-fusiformi, anfractibus convexis, transversim subtilissime 

 striatis, longitudinaliter tuberculatis, tuberculis apicem versus fortioribus, valde conspicuis, anfractiis ultimi 

 fere evanidis, nisi in carinam acute compressam ; alba, epidermide tenui lutescente induta. 



Hab. Eastern Seas. 



The rib-like tubercles of this species are developed with great force in all except the last 

 whorl, in which they are merely represented by a compressed keel. 



•3. Fusus acus. PI. VII. Pig. 3 a, I. Pus. testa lanceolato-fusiformi, gracillimi, solidiuscula, anfrac- 

 tibus longitudinaliter plicato-costatis, spiraliter sulcatis, sulcis snbtilibus, confertis, peeuliariter plano- 

 excavatis, apertura parva, canali fere clauso ; rufo-ferruginea. 



Hab. China Sea, off Borneo. 



A narrow lanceolate shell, of a solid, constricted growth. 



27. CANCELLARIA, Lamarck. 



1. Cancellaria macrospira. PI. X. Pig. 2. Cane, testa, acuminato-turrita, solidiuscula, vix umbi- 

 licata, spira. valde exserta, suturis plano-excavatis, anfractibus octo, convexis, apicem versus plicato-costatis, 

 hie illic undique obscure varicosis, liris tenuibus longitudinalibus et transversis, subobsolete crenulatis, 

 exiniie clathratis, columella tenuiter triplicate, apertura parva, labro incrassatim varicoso, superne producto ; 

 cereo-albicante. 



Hab. Coast of Borneo, China Sea. 



Remarkably distinguished from any species hitherto described by the elongated convo- 

 lution of the spire. 



