3-40 

 7. Descriptions of Four New Species of Kelliad^ in the 



COLLECTION OF HuGH CuMING, Esa. 



By Sylvanus Hanley. 



1. MoNTACUTA CoauiMBENSis. M. testū ovūtū vel obovata, 

 inceąuilaterali, antice obtusissime angulata, postice longiore et 

 late rotundata ; teiiui, subpellucida, maociine compressa, infra 

 epidermidem lutescentem albida {intus albo-submargaritacea), 

 concentrice et argutissime rugulosa ; margine ventrali integro, 

 convexo ; margine dorsali utrinque, prope nates acntissimas, 

 subretuso vel subrecto, antice subdeclivi, postice vix declivi, 

 lunula angustissima pJanulata impressa ; fossula ligamentali 

 apicali late trigona inter dentes duos laterales (altera in valvula 

 subobsoletos) breves divergentes prominentesque occlusa. 



Lat. ^ poli. 



Hab. Coąuimbo, in fine sand, 6 fathoms {H. C). 



The cartilage-pit is attached to tlie umbo, and edged below with 

 a eurved rini. The lateral scars are large, and well raarked ; the 

 pallial line is perceptibly simple. It is a somewhat aberrant species. 



2. Kellia tellinoides. k. testą rotundato-ovali, varius 

 subrhombea, subcecpiilaterali, solidiuscula, haud pellucida, ni- 

 tida, candida, Icevi, subventricosa ; margine ventrali intus 

 simplice, postice arcuato, antice subrecto, ascendente ; margine 

 dorsali utrincue subrecto et vix declivi ; unibo7iibui prominulis ; 

 natibus acutis ; superjicie interna submargaritacea ; impres- 

 sionibus muscularibus magnis {prcesertitn antica) ; linea pal- 

 liari simplice ; in utroque valvula dentibus lateralibus duobus, 

 validis, subcequidistantibus et dente unico apicali antico. 



Lat. I poli. 



Hab. Baclayon, Isle of Bohol, Philippines, under stones. 



The shape, as in most of the Kelliadce, is wont to vary. It is 

 obtusely rounded behind, and in front is either very bluntly peaked, 

 or obliquely subtruncated at the ventral corner. 



3. Pythina mactroides. p. testą transversim subtrigona, 

 (Bquilaterali vel sub<squilaterali, utrinque rotundata, magis 

 minusve solida, compresso-convexa, extus albido-lutescente, intus 

 alba, nitida, Icevi {sub lente minutissime punctulata) ; margine 

 ventrali integro, subrecto, in medio subretuso ; margine dorsali 

 utringue subrecto et subcequaliter declivi ; natibus acutis, pro- 

 minentibus, haud recurvis ; cardine utriusque valvulce dentibus 

 lateralibus duobus, solidis, subtrigonis, approximatis, in v. si- 

 nistra cum cardinali unico obliquo, acuto, angusto, et in v. 

 dextra cum tuberculo dentiformi ad basim d. lateralis antici 

 superimposito. 



Lat. -^ poli. 



Hab. Cape of Good Hope. 



The muscular impressions are well developed, and the simplicity 

 of the pallial line clearly perceptible. Allied to Bornia corbuloides 

 of Philippi. 



