80 



Obs. — Some of Philippi's figures of Ter. seminulum are so like 

 specimens of T. appressa (Forbes), that I at first imagined they 

 might belong to the same type ; and in my paper published in the 

 'Ann. and Mag. of Nat. Hist.' for May 1852, I placed Ter. appressa 

 of Forbes as a synonym of Philippi's species : but since that period 

 I have had reasons to believe this to be an error, and that in reality 

 the Italian author's type does not belong to the same species nor even 

 genus, but would be a synonym of Argiope {Ter.) Neapolitana of 

 Scacchi. I have also ascertained that the shell and animal of this 

 species are figured by Philippi, in the second volume of his ' Sicilian 

 Mollusca.' 



8. Kraussia Lamarckiana, Dav. 1852. (PI. XIV. fig. 22, 23.) 



Diagnosis. — Shell of a somewhat tetragonal form, flattish, with a 

 moderately deep longitudinal depression in the smaller valve and a 

 corresponding keel in the larger one ; hinge-line nearly straight ; beak 

 truncated by a large emarginate foramen, completed by two small 

 deltidial plates, and by a portion of the umbo of the smaller valve ; 

 hinge-area flat, well defined ; surface ornamented by a number of 

 small costse, augmenting here and there by bifiu-cation and mtercala- 

 tion at various intervals ; apophysaiy system consisting of two short, 

 central, diverging branches, bifurcated at their extremities ; structure 

 punctate ; colour light yellow. Length 3, width 3, depth 1^ line. 



Hab. Sydney and New Zealand. 



Obs. — This species is found near Sydney, living in company vrith 

 Ter. Australis, as may be seen by the specimen ui the British Mu- 

 seum ; it is distinct from K. pisum and K. Beshayesii, by its some- 

 what tetragonal shape, stronger and fewer costae, as well as by the 

 details of its loop, relating it more than any of the other species of 

 Kraussia to the section Megerlia ; its colour is likewise of a uniform 

 yellowish tint, while the above-mentioned species are differently 

 tinged with red. 



9. Kraussia Deshayesii, Dav. 1852. (PL XIV. fig. 20, 21.) 



Terebratula Capensis, Adams and Reeve, Voyage of the Samarang, 

 p. 70. pi. 21. f. 4, 1850 (non T. Capensis, Gmel.). 



Diagnosis. — Shell subovate, generally rather longer than wide ; 

 valves nearly equally convex, a deep longitudinal depression extending 

 from near the umbo to the front in the smaller valve, with a corre- 

 sponding keel in the perforated one ; beak produced, and truncated 

 by a large emarginate foramen ; deltidia small, nearly triangular, a 

 portion of the circumference being completed by the umbo ; surface 

 ornamented by a great number of small raised costse, augmenting 

 rapidly by bifurcation and intercalation of smaller plaits at variable 

 distances from the beak and umbo ; structure punctate ; colour light 

 yellow, vdth stripes of red ; apophysary system consisting of two 

 short, central, diverging lamellse expanded at their extremities. 

 Length 6, width 4, depth 2 lines. 



Hab. Korea. Coll. Cuming. 



