169 



One of the most beautiful of the group, allied to T. sulcata, with 

 which it agrees in form and size ; it is more brilliantly colored, and 

 the sulci are less general. T. laterisidca is differently colored, and the 

 sulci end more abruptly. It is more brilliantly varnished than any 

 other species. The young are nearly destitute of sulci. 



Venus (Mercenaria) Stimpsoni. T. solida, cinerea, ovato-cordata, 

 satis convexa, laminis erectis concentricis confertis disposite ornata ; 

 umbonibus antemedianis eminentibus, acutis, approximates; facie 

 dorsali antico concavo ; lunula profunda ; extremitate antica com- 

 press;!, rotundata ; facie dorsali postica arcuata, declivi, impressa, 

 nihil nisi striata ; extremitate postica satis acuta : cardo validus ; 

 cavositas et apophysis ligamentalis aurantiaci ; sinu siphonali minime 

 profundo ; margine interna simplici. Long. 3.7; alt. 3.3; lat. 1.7 

 poll. Inhabits Hakodadi, 6 fathoms. TV. S. 



A fine species analogous to American Atlantic forms. Resembles 

 V. mercenaria and V. Mortoni, but is less solid and less ventricose 

 than either, having the white interior and closely laminated exterior 

 of the latter. 



Venus puellula. T. parvula, subcireularis, ovato-triangularis, 

 solida, straminea rufo bi-vel tri-radiata ; umbonibus medianis, emi- 

 nentibus, purpureis ; extremitate antica rotundata ; margine dorsali 

 postica angulata, rapid c declivi, apice truncato ; margine ventrah' 

 semicirculari ; disco radus numerosis elevatis et costis compressis 

 alveolato, costis marginem posticam baud attigentibus. Cavositas 

 rufo-purpurea ; margine straminea, crenulata ; margine cardinali 

 purpurec-maculata. Long. 6 ; alt. 5 ; lat. 4 mUlim. Inhabits Ousima. 



w. s. 



Looks like a miniature specimen of the variety of V. marica, figured 

 in Sowerby's Thesaurus f. 110, yet seems in all respects adult. 



Chione roscida. T. parva, elongato-ovata, compressa, glabra, 

 nitida, antice sulcis concentricis arata ; umbonibus vix antemedianis ; 

 extremitate antica satis acuta ; extrem. postica magis rotundata ; 

 margine ventrali lente arcuata ; lunula lanceolata, depressa, linea 

 impressa circumscripta : color lividus, radiis 2-3 et zonis concentricis 

 incarnatis variegatus ; intus ad Hmbum flavescens ; disco incarnate 

 Long. 13; alt. 9; lat. 5 naillim. Inhabits Harbors of Ousima, in 

 sand, 15 fathoms. TV. S. 



A small, pretty shell of the same type as C. lilacina. 



Callista glandula. T. tenuis, albida, ovato-cordiformis, ven- 

 tricosa, liris confertis concentricis tenuibus insculpta ; umbonibus vix 

 antemedianis tumidis ; facie dorsali utroque concavo ; lunula masjna, 

 male impressa ; extremitate postica altiori, truncata ; margine ven- 

 trali arcuata. Long. 25 ; alt. 21 ; lat. 19 mUlim. Inhabits Hono- 

 Kong. W. S. 



22 



