OF CONCHOLOGY. 139 



Terehratula rubra, Blainv., Diet. Sci. Nat. liii, p. 138. Sbj., 

 Thes. Conch, vii, pi. 68, fig. 10. 



Terehratula capensis, Krauss, Sub. Afr. Moll. p. 32, pi. ii, 

 fig. 10. (Not of Ad. and Rve.,) Voj. Sam. p. 71, pi. xxi, 

 fig. 4. 



Kraussia rubra, Dav., An. Nat. Hist. 1852, p. 370, Gray, 

 B. M. Cat. p. 109, (fig. V.\ not 20). H. and A. Adams, 

 Gen. Rec. Moll, ii, p. 579. Rve., Conch. Icon. pi. ix, 

 fig. 37, a, b, c. Journ. de Conchyl. 1861, p. 131. Chenu, 

 Man. de Conchyl. vol. ii, p. 206. fig. 1056, 1058. 



Terebratula rotundata, Blainv., fide Reeve. 



ITab. Cape of Good Hope, " Orange Harb.," U. S. Ex. Ex. 

 Smithsonian cabinet, 17817. 



The attachments of the pedical muscles in this species are 

 very large and strongly impressed. The septum or mesial ridge 

 is rather faint. The cardinal process is moderate. The termin- 

 ations of the apophysary arms are somewhat spatulate. The 

 form is frequently distorted and very variable. The neural valve 

 is usually the most inflated. The apical septum is most evident 

 in small specimens, becoming eroded in very large or old speci- 

 mens. The foramen extends behind the carination of the area. 

 The teeth are not supported by laminae. The mantle adheres 

 closely to the shell at the margin, and the muscles are very 

 stout and strong. The ovaria are widely ramified. Setae were 

 not observed in the mantle-edge of dried specimens. 



Fig. 18. 



Fig. 18. Kraussina Lamarckiana, htBinal valve with animal. 



Kraussina Lamarckiana, Dav., fig. 18. 



Kraussia Lamarckiana, Dav., An. Nat. Hist. 1852, p. 370, 

 Proc. Zool. Soc. 1852, p. 80, pi. xiv, fig. 22, 23. Gray, 

 B. M. Cat. p. Ill, fig. 20 ? H. and A. Adams, Gen. 

 Rec. Moll, ii, p. 579. Chenu, Man. de Conchyl. ii, p. 

 206, fig. 1057. 



Kraussina Lamarckiana, Dav., An. N. Hist. 1861, p. 39. 



Hab. Sidney, Australia. Newcomb. 



This pretty little Bpecies is very poorly represented by Gray's 



