crenis albis cincto, extus cingulo rufo tuberculato ; aperturd an- 

 gulatd. Alt. l.diam. '2 lin. 

 Hab. New Guinea. Cab. Belcher. 



11. SoLARiUM FENKSTRATUM. Sol. testd orbiculūto-discoided, 

 spira retusd ; anfraciibits multiseriaiim granulatis, longitrorsum 

 striatis ; suturd canaliculatd ; ad peripheriam rotundatd, carinis 

 tribus subcEquaUbus ; basi rotundatd, seriatim granulatd ; umbilico 

 subpatulo, crenis parvis numerosis cincto ; ared umbilicali carinis 

 duabus parvis ; aperturd rotundatd. Alt. If, diam. 3| lin. 

 Hab. New Guinea. Cab. Belcher. 



As the only specimen obtained \vas without the animal, deprived 

 of colour, and had evidently been some time lying in the mud, the 

 cancellation is perhaps considerably raore distinct than in the recent 

 State. It is one of those which appioach very closely to the unanned 

 species of Delphinula. 



12. SoLARiuM CiELATUM. Sol. testd purvd, vūMc discoidcd, nitidd, 

 fuscd; spird nulld ; anfractibus prope suturam uniseriatim tuber- 



culatis, medib eleganter radiatim plico- striatis ; ad peripheriam 

 carinis duabus obtusis tuberculatis ; ad basin rotundatd ; aperturd 

 subrotundd ; umbilico valde patulo, crenis parvis numerosis armato. 

 Diam. 2, umbilic. 1 lin. 



Hab. Straits of Macassar ; in ten fathoms, among coarse sand. 



Cab. Belcher. 



13. SoLARiuM TROCHLEARE. Sol. testd orUculūto-conoided, depres- 

 siusculd ; anfractibus subtumidis, spirte longitudinaliter plicatis, 

 ultimo Icevigato, superne sulco unico divisis, ared supremd atro- 

 fuscofasciatd, infru maculis guadratis atro-fuscis cinctd ; ad peri- 

 pheriam carinatd, maculis albis et atro-fuscis articulate ornatd ; 

 ad basin paulisper tumidd ; umbilico magno, patulo ; crenis subacutis 

 fuscis. Diam. 29, umbUic. 8 lin. 



Hab. Indian Seas. Cab. Cuming and Hinds. 



In general appearance it very closely resembles S. perspectivum, 

 -vvith which it has no doubt been long associated. In comparing the 

 adult shells of both species, this will be found somewhat smaller, 

 thinner, and more depressed ; the whorls are some\vhat more tumid, 

 those of the spire obHquely longitudinally folded, but the lašt and 

 penultimate are smooth, or very nearly so ; above they are divided by 

 a single groove, between \vhich and the suture is a continuous dark 

 band, beneath a series of sąuare approximating spots, which towards 

 the spire usually become continuous ; the base is also somewhat 

 tumid ; the umbilicus is large, expanded. and perspective, and sur- 

 rounded by chestnut-brown angular crenations ; and the aperture is 

 rhomboidal. It is no doubt an Indian species, but the locality is 

 not known. 



14. SoLARiuM PURPURATUM. Sol. tcstd conico-orUculatd ; onfrūc- 

 tibus subtumidis, spira longitudinaliter obligue plicatis, superne 

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



