43 



portion of the interior in one variety than in the other. 



South Seas. 



6. Pt. Scorpio, (pi. xi. f. 1.) Linn. Gmel. p. 3508. No. 4. 

 T. sub-quadrata, spiraliter sulcata, tuberculorum seriebus 



tribus cincta, tuberculorum dorsalium tribus ad angulum 

 maxim is, tuberculis intermediis parvis, digitis septem, 

 terminalibus, elongatis, tuberculatis ; postica ad basin in alam 

 complauatamdilatata; aperturaelongata,ad marginem carneola, 

 intus purpurea, costis albis nigro interlineatis, transversis; 

 labio interno costis albis nigro interlineatis. 



This species is distinguished from the rest by the knobs in 

 the digitations, for which reason it is generally called the 

 " Gouty Scorpion" Moluccas, East Indies. 



7. Pt. PsEUDOscoRPio. (pi. xi. f. 2.) Lam. 



T. crassa, sub-quadrata, spiraliter costata, tuberculorum 

 seriebus tribus cincta, ad angulum tuberculis magnis, digitis 

 septem, crassis, vix nodulosis ; postica ad basin crassa ; 

 apertura sulcis interlineatis, irregularibus, elongatis, ad labium 

 internum distantibus, ornata. 



Differing from Pt. scorpio in the thickness and comparative 

 smoothness of the digitations, in the absence of the flattened 

 lobe at the base of the posterior canal, and in the comparative 

 coarseness of the sulci on the inner lip. The colour is of a 

 whitish brown mottled with darker brown, which is darkest at 

 the extremities ; the aperture in one variety is light brown, 

 and in the other of a dark reddish brown, with narrow white 

 ribs interlined with black. 



8. Pt. MiLLiPEDA. (pi. xi. f. 3.) Linn. 



T. ovali, sub-laevigata, spiraliter leviter striata, dorso aci 

 angulum tuberculis magnis ; infra-angulum seriebus duabus 

 tuberculorum; digitis decem, parvas ; tribus posticis uneta 

 antica, longiusculis ; medianis brevissimis, arcuatis : apertura 

 sub-leevigata, intus albo sulcata, fulvo-interlineata, margine 

 dilatata, tenui. 



The general colour is whitish brown mottled with darker 

 brown, with a narrow blackish line at the suture of the whorls ; 

 the aperture is of a smoky brown, which is darker between the 

 white ridges. Philippines, Indian Ocean. 



9. P. MULTiPES. (pi. xi. f. 8.) Chemn. (Strombus) 10.pl. 

 159. f. 1494, 1495. Purpurascens Sivainson. 



T. Sub-ovali, alba, fusco-maculata, spiraliter striata, dorso 

 ad angulum tuberculis maximis ; infra-angiilum costis tribus 

 noduliferis, margine costato ; apertura sulcis elevatis striata, 

 fauce purpurea ; labio extemo dilatato, margine fulvo-fasciato^ 

 digitis (extra canalem posticam) decem, sub-complanatis 



