170 



squamulis verrucosis obsitd ; latere antico rotundato, postico 

 subflexuoso rostrato ; area sulco impressd ; margine ventrali con- 

 vexo, postice subflexuoso. 

 Hab. in littoribus Australise. 



Shell transverse, equilateral, white, transversely concentrically pli- 

 cated in the middle ; plicae rather wide apart and angnlated ; inter- 

 stices longitudinally striated ; ventral region and both extremities 

 covered with scales, spinose at each end and wart-like in the middle. 

 Hab. Cape York, North Australia ; collected by J. B. Jukes, Esq. 



2. Sanguinolaria tellinoides. (Mollusca, PI. VI. fig. 6.) 

 S. testd transversd, incequilaterd, utrinque hiante, rubiginosd, 

 tenui, Icevi, striis transversis concentricis radiatim lineolatd; 

 latere antico latiore, rotundato ; postico angustiore, rotundato, 

 subrostrato ; ared laterali lined latd impressd; margine ven- 

 trali convexo, postich valdh sinuato. 



Hab. in Sinu Californise. 



Shell inequilateral, gaping at both ends, rubiginose, thin, smooth, 

 with transverse concentric striae and longitudinal fine radiating lines ; 

 anterior side the widest and rounded, posterior side narrowest, round 

 and somewhat beaked ; lateral area with a depression extending from 

 the umbo to the ventral margin ; ventral margin convex, strongly 

 sinuated posteriorly. 



Hab. Gulf of California. 



3. Panop^a Japonica, A. Adams. (Mollusca, PI. VI. fig. 5.) 

 Pan. testd eequivalvi, transversd, lateribus incequaliter hiante, 

 incequilaterd, utrinque rotundatd, albd, tenui, fragili, trans- 

 versim concentric^ plicatd, plicis subdistantibus rotundatis ; 

 latere antico breviorc, postico duplo ferh anticum superante ; 

 margine ventrali arcuato, integro. 



Hab. Japoniam. 



4. Description of a new species of the Genus Thracia. 



By Dr. Jonas. Communicated by H. Cuming, Esq. 



Thracia magnifica, Jonas. (Mollusca, PI. VI. fig. 7.) Th. 

 testd ovato-oblongd, transversd, incequivalvi, lacted ; utrinque 

 rotundatd ; lateribus hiante ; valvd dextrd ventricosiore et ma- 

 jore quam sinistrd ; latere antico flexuoso, posteriore brevi, 

 oblique carinato, transversim corrugato-plicatd, plicis subdi- 

 stantibus concentricis longitudinaliter radiatim granulato-stri- 

 atd, margine neutrali arcuato antice subsinuato. 



Hab. ? 



5. Notice of a Hybrid Crowned-Pigeon, hatched in the 



Menagerie. By D. W. Mitchell, Sec.Z.S. etc. etc. 



The habits of so singular a form as the Crowned-Pigeon possess an 

 interest, which will, I believe, be a sufficient apology for my desire to 

 make some record of the first instance of its successful nidification in 



