440 Zoological Society. 



10. Solarium viugatum. Sol. testd orbiculato-discoided, spird 

 retusd ; anfractibus quadriseriatim granulatis, cingulo supremo et 

 ultimo rufis, medinnis albis ; ad perlpheriam obtusis, duabus carinis 

 crenulatis ; bast rotundatd, seriatim granulatd ; itmbilico mediocri, 

 crenis albis cincto, extus cingulo rufo tuber culato ; aperturd an- 

 gulatd. Alt. 1, diam. 2 lin. 



Hab. New Guinea. Cab. Belcher. 



11. Solarium fenestratum. Sol. testd orbiculato-discoided, 

 spird retusd ; anfractibus multiseriatim granulatis, longitrorsum 

 striatis ; suturd canaliculatd ; ad peripheriam rotundatd, carinis 

 tribus subaqualibus ; basi rotundatd, seriatim granulatd ; umbilico 

 subpatulo, crenis parvis numerosis cincto ; ared umbilicali carinis 

 duabus parvis ; aperturd rotundatd. Alt. 1|, diam. 3^ lin. 



Hab. New Guinea. Cab. Belcher. 



As the only specimen obtained was without the animal, deprived 

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

 cancellation is perhaps considerably more distinct than in the recent 

 state. It is one of those which approach very closely to the unarmed 

 species of Delphinula. 



12. Solarium celatum. Sol. testd parvd, valde discoided, nitidd, 

 fused; spird nulld ; anfractibus prope suturam uniseriatim tuber- 



culatis, inedib eleganter radiation jjlico-striatis ; ad jieripheriam 

 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 orbiculato-conoided, depres- 

 siusculd ; anfractibus subtumidis, spirce longitudinaliter plicatis, 

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



fusco fasciatd, infra macdis quadrat is 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, umbilic. 8 lin. 

 Hab. Indian Seas. Cab. Cuming and Hinds. 

 In general appearance it very closely resembles S. perspectivum, 

 with 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 somewhat more tumid, 

 those of the spire obliquely longitudinally folded, but the last and 

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

 a single groove, between which and the suture is a continuous dark 

 band, beneath a series of square 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 purfuratum. Sol. testd conico-orbiculatd ; anfrac- 

 tibus subtumidis, spires longitudinaliter oblique plicatis, superne 



