93 



Terebratula sanguinea (sanguinea, Chemn. ; T. erythroleuca of 



Quoy) . Ter. testd suborbiculari, antice subemarginatd, gibbosius- 



culd, tenui, sanguined, radiis maculisąue radiantibus albidis ornatd; 



lined marginali rectd, antice subsinuatd ; valvd dorsali postici 



subacuminatd, truncatd, foramine mediocri, inlegro, ared cardinali 



latiusculd, marginibus subacutis, deUidiis majusculis, coalescenti- 



hus ; valvd ventrali depressiusculd, trnnsversim obovatd, antich 



subsinuatd, ossiculo interno pritnum format radios duos, deindi 



annulum centralem et amenta duo lateralia, demum amentum su- 



perum integrum. 



Shell suborbicular, slightly notched in front, rather gibbous, thin, 



of a bright light red colour, •vvith white rays and radiating spots ; 



marginai line straight, slightly sinuated in front ; dorsal valve rather 



acuminated behind and truncated ; perforation middle-sized, com- 



plete; cardinal area rather broad, with sharpish edges ; deltidia 



rather large and united ; ventral valve somewhat depressed. trans- 



versely obovate, slightly sinuated in front ; the internal ajjpendage 



at first forms tvpo rays, then a centrai ring and t\vo lateral loops, 



and at length a reflected dorsal loop united to the centrai ring ; 



margin of the valves entire. 



From the island of Zebu, attached to coral under stones ; H. 

 Cuming. 



Terebratula inconspicua. Ter. testd rotundato-subtrigonali, pos- 

 tice acuminato-rotundatd.antice subsinuatd, obscure rufd; valvis in- 

 agualibus, glabris ; lined marginali flexuosd ; valvd dorsali rotun- 

 dato-subtrigond, maximd incompletd; ared cardinali latd,ad utrum- 

 que latus declivi ; deltidiis mediocribus, late discretis ; valvd ven- 

 trali transversim oblongd, subplanulatd, sulco mediano, lato, subin- 

 conspicuo ; margine valvarum integro. 

 Shell rounded, subtrigonal, acuminated and rounded behind, 

 slightly sinuated before, dull red ; valves uneąual, smooth ; marginai 

 line flexuous ; perforation large, incomplete ; cardinal area broad, in- 

 clining on each side ; deltidia of moderate size, widely separated; 

 ventral valve transversely oblong, somevvhat flattened, with a broad, 

 rather indistinct mesial groove ; margin of the valves entire. 

 From the late G. Humphrey's coUection : locality unknovvn. 



Terebratula pulchella. Ter. testd subovatd, postice acuminato- 

 rotundatd, lievi, albidd, lineis nonnullis radiantibus rufis ; valvis 

 inaqualibus ; lined marginali subJlexuosd ; valvd dorsali subpla- 

 nulatd, postice acuminatd, antice rotundatd, foramine magno, in- 

 completo ; ared marginali inconspicvd, lateribus rotundatis ; delti- 

 diis parvis, discretis ; valvd ventrali subcirculari, platiulatd ; ossi- 

 culo interno e gnomone porrecto, antice posito, constante ; margine 

 valvarum integro. 

 Shell subovate, acuminated and rounded behind, smooth, \vhitish 

 ■with a few radiating red lines ; valves uneąual, marginai line some- 

 vvhat flexuous ; dorsal valve rather flattened, acuminated posteriorly, 

 rounded in front ; perforation leirge, incomplete ; cardinal area in- 

 distinct, its sides rounded ; deltidia snoall, separate ; ventral valve 



