22 



6. Triton anomalus. TV. festd ovatd, fuscd, longitrorsum costatd, 

 lineis Irnnsmersis elevatis cancellatu ; spira aperturam ceguante ; 

 suturd validd ; evaricosd ; aperturd ovali, pallidd ; canali brevius- 

 culo. Axis 7 lin. 



Hab. Island of Quibo, Veragua ; on the sandy shore at low water. 



SoLARiUM, Lamarck. 



At the sale of the collection of shells of Mr. Imwood, several lots of 

 Solarium came iiito ray possession ; and as it was a favourite group 

 •vvith this gentleman, he, as might naturally be supposed, had assem- 

 bled together many very interesting specimens. The fuU suites of 

 some of the species have enabled me better to dra'vv a line of distinc- 

 tion between them, and has afforded grounds for regarding several of 

 the following as perfectly distinct and hitherto undescribed species. 

 In addition to the above, I have had before me the cbllections of Sir 

 Edward Belcher and Mr. Cuming, both rich in novelty, but more 

 particularly in the careful and accurate detail of localities and cir- 

 cumstances of habitation. The whole permits me to record fourteen 

 new species in a genus which previously seemed to contain about 

 fifteen recent and forty-nine fossil species. 



1. SoLARiLM FORMOsni. Sol . testd orbiculūto-conicd, poUtd, fūs- 

 ci'.itd ; anfractibus subtumidis, svperne sulco unico divisis, in/e- 

 rioribus lavigatis, spiree plico-striati.t, superne fusco , albo, et atro- 

 fusco deinceps fasciatis, medio subcorneis ; ad basin planulatd, 

 aperturd quadratd ; umbilico patulo, crenis rectis, subacutis,/us- 

 caiis ; ared umbilicali lutd, sublcevigatd. Diam. 18, umbilic. 3^ lin. 



Chemnitz, vol. v. t. 172. f. 1693. 



Hab. Amboina. Cab. Hinds. 



This fine shell has hitherto, most probably, been considered only 

 as a variety of the well-known species S. perspcctivum ; it is how- 

 ever sufficiently distinct. In shape it is considerably more elevated 

 and conical, and it is ornamented vvith rich fasciations of brown and 

 ■vvhite. Near the upper part of each vvhorl a narrovv sulcus separates 

 a narrow portion. The base is Hattened and polished ; umbilicus 

 moderately dilated, being less so than in S.perspectivum, and armed 

 on the margin with a row of straight sharp crenules, on their right 

 faces of a darker browu colour. The umbilical area, or the space 

 between the spirally twisted row of crenules, is smooth, except for 

 the arched strise of growth. 



2. Solarium placentale. Sol. testd discoided, palUdefulvd, la- 

 vigatd ; spird valde depressd ; anfractibus planulatis, ordinate 

 spiraliter striatis ; ad peripheriam obtuse unicarinatd , svbtus stri- 

 atd ; carind crenulatd ; ad basin subtumidd ; aperturd triangulari; 

 umbilico valde patulo, crenis tuberculatis subdistantibus armato. 



Hab. Bay of Magdalena, Califomia ; in seven fathoms, sand. 

 Cab. Belcher. 



3. Solarium PERDix. Sol. testd conoided, tenui, Ičevigatd, pallidd ; 

 anfractibus subtumidis, supern"^ cingulo unico divisis, spirte minute 



