34 



^^ This and the five following species plainly belong to the family 

 Kelliadas ; but their precise generic place is less easily decided, and 

 indeed cannot be, without further knowledge of the animals. I have 

 placed them under the old genus Kellia, stating in what respects they 

 verge toward later genera. Mr. P. P. Carpenter has for the most 

 part worked out for me these minute bivalves. 



Kellia balaustina. T. minuta, nitida, rotundato-ovata, rubigi- 

 nosa, subdiaphana, lineis concentricis creberrlmis insculpta ; umboni- 

 bus submedianis, eminentibus ; margine ventrali valde arcuata : 

 marginibus cardinalibus rubidis ; valvag alteraa dentibus card, duobus 

 parvis, dentibus lateralibus brevissimis, postico fere obsolete ; valvse 

 alterse dentibus lateralibus curtis, antico obsoleto, dente eardinali 

 unico, valido. Long. 2.5 ; alt. 2 millim. Inhabits Sydnev harbor. 



w. s 



Three fresh specimens were obtained, resembling Astarte triangu- 

 laris. The lateral teeth are very short, and but from analogy might 

 be described as cardinal. 



Kellia bulla. T. tenuissima, diaphana, ventricosa, elliptica, 

 postice truncata, lineis incrementi vix conspicuis ; umbonibus parum 

 exstantibus ; valvae alterae dente eardinali debili, subelongato, torto ; 

 dente laterali curto parum elevato ; valvar alterss — ? Long. 8 -f- ; lat. 

 6 ; alt. 6 + millim. Inhabits Loo Choo. W. S. 



Distinguished by the swollen, slightly prominent umbos ; teeth short 

 and delicate. 



Kellia uxdulata. T. minuta, tenuis, ovato-quadrata, tumida, 

 concentrice undulato-striata, flavido-rosaceo tincta ; umbonibus vix 

 ante-medianis, elevatis ; extremitate antica acute rotundata ; extrem. 

 postica latiori, subtruncata ; margine ventrali lente arcuata, dimidio 

 postico cavositatis vivide miniato. Long. 2 ; lat. et alt. 1.5 millim. 

 Inhabits Kagosima. W. S. 



Kellia compacta. T. equilateralis, subquadrata, epidermide 

 extra margin em producta bene induta, striis concentricis lamellosis 

 ornata ; umbonibus hand eminentibus ; marginibus dorsalibus rectis, 

 declivibus ; marg. ventrali recta : extremitatibus rotundatis ; cicatrici- 

 bus ovalibus ; linea pallii simplici ; valvule alterae dentibus duobus 

 magnis, divergentibus, equalibus ; alterae marginibus dentibus simulan- 

 tibus, elongatis ; fossa ligamentali amplu. Long. 6 + ; lat, 3 -f ; alt. 5 

 millim. Inhabits ? 



Resembles in form Boi'nia corhuloides Phil. The prolonged infolded 

 epidermis brings it in alliance with Lepton ; but its hinge is like that 

 of Pz/tMna Hindu. A knowledge of the animal can alone remove it 

 definitively from the old genus Kellia. 



Kellia con vex a. T. parva, trigono-elliptica, plus minusve in- 



