150 Zoological Society. 



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

 Ter. Justralis, as may be seen by the specimen in the British Mu- 

 seum ; it is distinguished from K. pisum and K. Beshayesii, by its 

 somewhat tetragonal shape, stronger and fewer costse, 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. 



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, with stripes of red ; apophysary system consisting of two 

 short, central, diverging lamellae expanded at their extremities. 

 Length 6, width 4, depth 2 hues. 



JIab. Korea. Coll. Cuming. 



10. Argiope Neapolitana, Scacchi, sp. 



Terebratula Neapolitana, Scacchi, Oss. Zool. ii. p. 18. 



Terebratula seminulum, Philippi, En. Moll. Sicilise, 1836 ; Sow. 

 Th. Conch, pi. 71. f. 85, 88. 



Argiope Forbesii, Dav. Ann. and Mag. of Nat. Hist. May 1852. 



Diagnosis. — Shell small, suborbicular, nearly as long as wide, com- 

 pressed, emarginated in front ; valves unequal, slightly convex, almost 

 smooth or ornamented by a few rounded and nearly obsolete radiating 

 costae ; a longitudinal depression extending along the centre of the 

 smaller valve ; beak produced ; foramen large, with a small, lateral, 

 deltidial plate, and an area on either side ; hinge-line straight ; 

 apophysary system consisting of a small longitudinal mesial septum, 

 with a complete two-lobed loop ; colour light yellow ; structure 

 largely punctate. Length \^, width 1^, depth ^ line. 



Hab. Naples, and different parts of the Mediterranean, in from 

 60 to 105 fathoms (Forbes). 



Obs. — Since the publication of my paper in the * Annals,' May 

 1852, I have, through the kindness of Mr. Hanley, been enabled to 

 examine two specimens, said to be the types of Scacchi' s 2Vr. Nea- 

 politana, and, according to Kiister, the Ter. se?ninulum of Philippi 

 would be a synonym ; although the last-named author's species, 

 from his illustration presenting a deep notch in the umbo (a character 

 never seen in any Argiope), had led nie erroneously to believe 1\ se- 

 minulum the same as Prof. Forbes's T. appressa. The figures of 



