Miscellaneous. 871 



lineis radiantibus con/ertis, decussatd ; margiue vent rati arcuato, 

 postice sursum ncclinantc ; dorsali utrinque convediuaculo, antice 

 subdeclivi, posticr valde decUvi ; latere antico longiore, rotundato ; 

 eatreinhate posticd brcvi, angulatd ; costd umbonali vuldr cunspiciid ; 

 liyamciito iiifonso ; lunula distinctd ; dentibus lateralibus subremu- 

 tis, subcpquidistantibits. Long. 1*25 ; lat. r42 poll. 



Hab. .'' Mus. Cuming. 



In sculpture not unlike T. decussala ; in form more akin to 7". os- 

 tracea. 



Tellina subtruncata. Tel. testd obovatd, valde inccquilaterali, 

 (ilbidd, st}'iis lamellosis jimh-iatis confertisshne. ornatd ; margine 

 vrntrali antice arcuato, postice subrecto et sursum acclinante ; 

 dorsali utrinque magis mimisve cotweoro, antice declivi, postice 

 viaxitne declivi ; extremitatc anticd rotundatd ; latere postico bre- 

 vissimo, subtruncnto, angvlaio ; ligamento infosso ; dentibus late- 

 ralibus subcequidistantibus. Long. 0"60; lat. 0*75 poll. 

 Hab. Isle of Bohol ; on the reefs, low water. 



I had almost regarded the first specimen of this rare shell in Mr. 

 Cuming's collection as a monstrosity, but the examination of another 

 specimen in Sir Edward Ikdcher's cabinet has satisfied me that the 

 seemingly diseased and stunted appearance is characteristic and not 

 accidental. 



Tellina perplexa. Tel. testd T. ostracese affinis, suhovatd autem, 

 striisque ejus concentricis, magis con/ertis et superne hand laniel- 

 losis ; margine dorsali antico paululhn declivi. Long. r20; 

 lat. 1"65 i^oll. 

 Hab. Bay of Manila ; sandy mud, six fathoms : Cuming. 

 Rather a solid shell, which is apparently closely allied to the lin- 

 tea of Conrad ; but the curvature of the ligamental margin, as repre- 

 sented in the figure of that shell, by no means agrees with its direc- 

 tion in perplexa. 



MISCELLANEOUS. 



abundant occurrence of rare infusoria in the scallop. 



To the Editors of the Annals of Natural History. 



Gentlemen, — The discovery some time since of the siliceous shells 

 and cases of animalcules in the stomach of recent Lepades, belonging 

 to many of the genera and some of the species Avhich constitute a 

 large proportion of the miocene tertiary strata of Virginia, was an- 

 nounced in Dr. Mantcll's recent work the ' Medals of Creation.' (See 

 vol. i. p. 586.) This fact, so highly interesting in a geological point 

 of view, has since been fully established by many observers ; and 

 among others by the Rev. J. B. Reade, who has communicated the 

 result of his examination of the oyster to the Microscopic Society. 

 Having subsequently extended my investigations to the contents of 



