PECTEN. 



Plate XXII. 



Species 84. (Mus. Cuming.) 



Pecten roseo-punctatus. Pect. testa snbirigono-ob- 

 longd, JlabeUiformi, aquilaterali, csqnivalvi, valvis ra- 

 dlatim dense acute liratis, costis tmnidis suhtuberculatis 

 obsolete radiata, undiqiw sub lente minutissime serratd; 

 alba, valvd smistrd pulcherrime roseo-punetatd ; avri- 

 culis valde inieqiialihus. 



The eose-dotted Peoten. Shell somewhat triangu- 

 larly oblong, fan-shaped, equilateral, equivalve, valves 

 radiately densely sharply ridged, obsoletely rayed 

 with five slightly tuberculated swollen ribs, beneath 

 the lens very minutely serrated ; white, left valve 

 very beautifully dotted with rose ; ears very unequal. 



Hob. Moluccas. 



A delicate marble-white shell, of somewhat rude growth, 

 thickly dotted on the upper valve with bright rose. 



Species 85. (Mus. Cuming.) 



Pecten funebkis. Pect. testa subtrigono-ovatd, altiore 

 quam longd, subtequilaterali, (equivalvi, valvis costis 

 quinque et vighiti, undique irregulariter squamatis, ra- 

 diatis ; Jlavescente-nigricante, vet intense fumeo-fuscd, 

 albo partim maculatd ; auriculis valde inaquaUbus. 



The mourning Pecten. Shell somewhat triangularly 

 ovate, higher than long, nearly equilateral, equivalve, 

 valves rayed with five -and -twenty ribs, regularly 

 scaled throughout; yellowish -black or deep smoky- 

 brown, partially mottled with white ; ears very un- 

 equal. 



Hab. Bathurst, Australia. 



Beautifully characterized by its very neat and profuse 

 arrangement of scales. 



Species 86. (Mus. Cuming.) 



Pecten miniaceus. Pect. testa subtrigono-ovatd, gibbo- 

 siusculd, aquilaterali, (equivalvi, valvis costis octo et 

 viginti obtuse serratis radiatis ; intense miniaced, pal- 

 lide sparsim marmoratd; auriculis valde incequalibus. 



The vermilion Pecten. Shell somewhat triangularly 

 ovate, rather gibbous, equilateral, equivalve, valves 

 rayed with eight-and-twenty obtusely serrated ribs ; 



deep vermilion, sparingly faintly marbled ; ears verv 

 unequal. 



Eab. 



A very richly-coloured species, with the ribs close-set, 

 rather appressed, and bluntly sen'ated. 



Species 87. (Mus. Cuming.) 



Pecten ustulatds. Pect. testa trigono-orbictilari, cras- 

 siusculd, aquilaterali, requivalvi, valvis costis tribus ad 

 qitatuor et viginti obtuse distanter serratis radiatis ,■ 

 ustulato-rnfd, versus umbones aurantid; auriculis su6- 

 aqualibus, tenuisquamatis. 



The scorched Pecten. Shell triangularly orbicular, 

 rather thick, equilateral, equivalve, valves rayed with 

 twenty-three to twenty-four obtusely distantly ser- 

 rated ribs ; burnt red, orange towards the umboes ; 

 ears nearly equal, finely scaled. 



Hab. Australia. 



A fine new species, of rather solid growth, simply cha- 

 racterized. 



Species 88. (Pig. a, b, Mus. Cuming.) 



Pecten DiErFENBACHi. Pect. testa subtrigond, prope 

 umbones titrinque peculiariter impresso-plicatd, aqui- 

 laterali, subaquivalvi, valvis sape irregularibus, pro- 

 fuse radiatim lineaiis et liratis, lineis lirisque undique 

 anguste squamatis ; rufescente-fuscd aut violaced ; au- 

 riculis valde inaqualibus. 



DiEf fenbach's Pecten. Shell subtriangular, peculiarly 

 impressly plicated on both sides near the umboes, 

 equilateral, nearly equivalve, valves often irregular, 

 profusely radiately lineated and ridged, the lines and 

 ridges everywhere narrowly squamate ; reddish-brown 

 or violet ; ears very unequal. 



Gray, App. Dieffenbach's New Zealand. 



Eab. New Zealand. 



Distinguished among other characters by a peculiarly 

 impressed flexuous growth beneath the front ear. 



Species 89. (Mus. Cuming.) 

 Pecten nucleus. Pect. testa oblongo-orbiculari, crassi- 



May, 1853. 



