645 



cata, alba ; maculis angulatis magnis sparsis fasciatim dispositis ; 

 latere autico breviusculo, lunula vix tlistincta ; latere postico ob- 

 tusissime subangulato ; margine dorsali subdeclivi. 



Shell of a rounded-oval form, ventricose, white, with broad an- 

 gulated large spots disposed in two or three bands ; concentri- 

 cally ribbed, the ribs distant and rather sharp. 



Locality unknown. Mus. Cuming. 



112. Cyther^a calypiga (pi. cxxxv. f. 164), Born (Venus), 

 Mus. Cais. t. 5. f. 1. 



Cyth. testa ovali-suboblonga, compressa, concentrice planulatim 

 sulcata, alba, fusco angulatim picta; latere antico brevi, lunula 

 distincta, angustata j latere postico subelongato, margine dorsali 

 subdeclivi. 



The identification of this shell is conjectural ; but it closely 

 resembles the figure quoted. It is of a rather lengthened ellip- 

 tical form, flat, with flattish concentric ridges, which are less dis- 

 tinct in the centre ; white, with broad angular markings of red- 

 dish-brown defined by strong lines. 



Locality unknown. Mus. Cuming. 



113. Cyther^a elegans (pi. cxxxv. f. 163), Koch, Phi- 

 lippi, Abbild. t. 1. f. 4. 



Cyth. testa ovali, Igevigata, partim concentrice sulcata, albido- 

 grisescente, fusco-rufescente, maculis magnis, binis, suffusis, ra- 

 diatim picta, intiis purpureo ad margines picta; latere postico 

 subacuminato, margine dorsali subrotundato. 



Shell oval, smooth in the centre, but with slight ridges at the 

 sides and near the ventral margin ; of a mottled greyish colour, 

 with two large, broad, radiating patches of rich reddish-brown ; in- 

 side greyish-white, with touches of purplish-brown at the margins. 



Swan River. Mus. Cuming. 



114. Cyther^a elliptica (pi. cxxxv. f. 173, 174), Sowerhy, 

 jun. C. calypiga ? Philippi, Abbild. t. 9. f. 1 ; non Born, i. 5. f. 1. 



Cyth. testa ovali, depressa, laevigata, partim griseo-fulva, prope 

 umbones purpurascente, ad marginem fulva, fusco angulatim 

 picta; intiis albido-subcserulescente, ad margines fusca, in medio 

 maculata ; latere antico concentrice sulcato ; latere postico longi- 

 usculo, striato; margine dorsali subplanulato, nigro-punctato ; 

 lunula elongata, parva, distincta. 



Shell oval, flattish, smooth in the centre, anteriorly grooved. 



