18 cyprjEA. 



tibus 13 et 15 crassiusculis, convergentibus ; interstitiis 

 profundis. 



51. annulus, Linn., (f. 252, 253) . — C. testa C. monetae affini, 

 subcinereo-fulva, ovata ; terniiuis obtusissirnis, lateribus de- 

 clivibus, annulo aureo conspicuo ; lateribus incrassatis, supra 

 dorsum inflato-elevatis ; dorso angusto, depresso. 



52. obvallata, Lamk., (f. 254, 255). — C. monetae affini, 

 testa oblongo-obtusa, ; lateribus incrassatis, supra dorsum ele- 

 vatis ; dorso casruleo, depresso. 



Note. — Moneta (including icterina, Barthelemyi, Noumeen- 

 sis), annulus, obvallata. The above are probably varieties 

 aud states of the same species in reality, but the oval obtuse 

 form of annulus, the raised sides and dorsal entrenchment of 

 obvallata (corrected from obvelata), are so well marked that 

 they can be easily separated, and may therefore usefully re- 

 tain their distinctive names. On the other hand, Bar- 

 thelemyl and Noumeensis are so obviously distortions similar 

 to those which occur in several other species in New Cale- 

 donia, that their description under separate names is to be 

 regretted. 



A*. Group 3. More or less ovate, with flat bases and margins 

 of extremities produced vertically. 



53. steecoeaeia, Linn., (f. 96-98). — C. testa, ovata, gib- 

 bosa, ventricosa, ; basi planulata, antice concava ; marginibus 

 lateralibus depressis, subalatis, canali postico productis ; 

 dorso elevato, frequenter gibboso, cinereo, maculis rotundis 

 fusco-ustulatis creberrime vel sparsim nebulato ; terminis 

 profunde emarginatis ; basi lateribusque cinereo-carneis, 

 rnaculatim nebulosis ; apertura, sinuosa ; dentibus albis, anticis 

 elongatis. 



Note. — Lamarck's C. rathis is the more gibbous variety, 

 with fewer burnt-brown spots. 



54. Scottii, Brad., (f. 47, 48).— C. testa oblonga, fusi- 

 formi, acuminata ; extremitatibus contractis et erecto-re- 

 curvis ; marginibus productis, ad latera planato-depressis ; 

 dorso cinereo-purpurascente, fusco-ustulato et subaurantio 

 maculato ; lateribus basique fusco-ustulatis ; basi subplanu- 

 lata, antice conspicue concava ; dentibus albicautibus. 



55. theesites, Gash., (f. 49, 50). — C. testa ovata, gibbosa ; 



