424 MESSRS. A. ADAMS AND G. FRENCH ANGAS [NoV. 10, 



1. FossARiNA PATULA, Ad. & Ang. (PI. XXXVII. figs. 9, 10.) 



F. testa turbinata, depressa, late umbilicata, spira parva, sor- 

 dide alba, nigro-fusco sparsim maculata ; anfractibus 3, con- 

 vexis, ultimo magno transversim valde lirato, liris granulosis 

 majoribus cum minoribus alternantibus, ad basin simplicibus ; 

 umbiUco margine acute carinato ; apertura orbiculari, ampla ; 

 labio arcuato, margine convexo, simplici ; labro margine acuto, 

 postice dilatato, ascendents. 



Long. 3 lines, lat. 2\ lines. 



Hab. Port Jackson, under stones, low water {Coll. Angas.). 



Two specimens only of this peculiar form were obtained during an 

 unusually low tide, adhering to the under surface of stones, at Wat- 

 son's Bay, Port Jackson. 



2. Adeorbis angasi, A. Ad. (PI. XXXVII. figs. 11, 12.). 



A. testa valde depresso-conica, late umbilicata, alba, tenui, semi- 

 pellucida; anfractibus rapide accrescentibus, ultimo magno, con- 

 vexo, concentrice striato, radiatim obsolete plicato, ad suturam 

 crenulato, ad peripheriam acute angulato et concinne crenato, 

 ad basin radiatim corrugato-plicato ; apertura semiooata ; labio 

 rectiusculo, acuto ; labro postice ascendente. 

 Long. 3 lines, lat. 2f lines. 



Hab. Coodgee Bay, outside Port Jackson Heads {Coll. Angas.). 

 [I have dedicated this imique and lovely species to my friend and 

 coadjutor, who has laboured so assiduously and so successfully in ex- 

 tending our knowledge of the Australian MoUuscan fauna. — A. A.] 



3. Vanicoro recluziana. Ad. & Ang. 



V. testa turbinata, late umbilicata, alba, spira parva ; anfrac- 

 tibus 5\, longitudinaliter obsolete plicatis, transversim crebre 

 liratis ; umbilico profunda, perspectivo, periomphalo valde an- 

 gulato ; apertura semiovata, patula. 



Long. 5 lines, lat. 4 lines. 



Hab. Port Jackson, under stones, low water {Coll. Angas.), 



A species with the whorls finely Urate, and with the margin of the 

 umbilicus strongly angulate. 



IV. MOLLUSCA CONCHIFERA. 



To the known Bivalves of Australia we have been fortunate in add- 

 ing a fine ventricose Dosinia, a lovely Sunetta, allied to S. excavata, 

 Hani., from Japan, an interesting thin inflated species of Naranio, 

 two large and showy Lucinee, a splendid Pecten from Tasmania, two 

 large Nuculce, and two Crassatellce of great beauty. 



1. Dosinia diana, Ad. & Ang. 



D. testa orbiculato-cordata, gibba, suboequilaterali, nivea, lunula 

 lata profunde impressa, area cardinali postica marginibus ro- 

 tundatis, umbonibus perlcevibus, superficie valvarum concinne 

 crebre concentrice lirata, margine ventrali regulariter arcuato. 



