Zoological Society. 441 



sulcis duabus cinctis, maculis rufo-fuscis subgeminis ornatis, ared 

 mediand pallide cinered ; ad peripkeriam carinatd articulate macu- 

 latd; ad basin strigis rufo-fuscis radiatim dispositis ; umbilico 

 subpatulo, crenis parvis albidis. Diam* 15, umbilic. 4 lin. 



Hob. ? Cab. Hinds. 



The base is distinctively ornamented with reddish-brown rays, 

 and the square spots on the whorls are somewhat twin in their dis- 

 tribution, since they occupy corresponding situations in the two 

 upper narrow areas. 



Corbula, Bruguieres. 



1. Corbula crispa. Corb. testdovatd, solidd, albidd, antice rotun- 

 datd, postice truncatd, ab umbonibus obtuse carinatd; valvis ro- 

 tundatis, dextrd eburned sulcatd, sinistrd fere Icevigatd; umbonibus 

 politis, eburneis. Long. 4^ ; lat. 1\ ; alt. 3 lin. 



Hab. Island of Burias, Philippines. Cab. Cuming. 



2. Corbula adusta. Corb. testd suboblique trigond, l<evigatd, fused, 

 subtumidd, antice rotundatd, postice subacuminatd , ab umbonibus 

 angulatd ; valvarum marginibus ventralibus acutis, productis ; um- 

 bonibus erosis. Long. 6 ; lat. 2|| ; alt. 5 lin. 



Hab. New Zealand. Cab. Cuming. 



3. Corbula procera. Corb. testd ovatd, Icevigatd, fused, antice 

 rotundatd, postice elongatd, subnasutd ; valvarum marginibus ven- 

 tralibus acutis, productis; umbonibus erosis. Long. 7 ; lat. 3 ; 

 alt. 5 lin. 



Hab. ? Cab. Cuming. 



These two species closely resemble each other, and both are pro- 

 bably estuary shells. 



4. Corbula carnosa. Corb. testd ovatd, solidd, subaquilaterali, 

 pallida, carnoso-roseo radiatd ; valvis ambabus sulcatis, marginibus 

 ventralibus inclausis ; antice rotundatd, postice subnasufe breviter 

 attcnuatd ; umbonibus Icevigatis, ad angulos albidis. Long. 4^; 

 lat. 2 ; alt. 3 lin. 



Hab. ? Cab. Cuming. 



" Continuation of Mr. G. B. Sowerby's description of Scalaria." 



Scalaria aurita, Thes. Conch, part 4. pi. 33. f. 62. Seal, testd 

 elongatd, Icevi, umbilicatd ; anfractibus rotundatis, contiguis ; va- 

 ricibus Itsvibus, decumbentibus, subnumerosis, prope suturam sub- 

 arcuatis, nonnullis crassis, pluribus tenuibus ; aperturd magnd, au- 

 riformi ; colore inter varices fulvo, fasciis tribus fuscis . 



In general form resembling Sc. lineata of Say, but wanting the 

 keel on the lower whorl, and having a large open umbilicus. In 

 Mr. Cuming's collection ; from the coast of Coromandel, 



Scalaria immaculata, Thes. Conch, part 4. pi. 33. f. 58. Seal, 

 testd pyramidali, acuminatd, transverse minutissime striatd ; anfrac- 

 tibus numerosis, rotundatis, suturd distinctd ; varicibus simplicibus, 

 plerumque tenuissimis, nonnullis crassiusculis ; aperturd ovali, pos- 

 tice acuminatd, labio interno antice subincrassato ; umbilico medi- 

 ocri; colore albo. 



