97 



St. Vincent Gulf (type specimen, Angas); Middleton (B. IT. 

 JPuUezne!); and South-East coast. 



Shell orbicular, divaricately ridged. 



The South Australian shell has been merged by several 

 authors into L. dentata, Wood, but E. A. Smith in Moll. 

 Challenger Exped. has very properly shown the invalidity of 

 such association. On the authority of Mr. Cook (Ann. and 

 Mag. Nat. Hist., 188(3), L. Cumingi is made a synonym with 

 L. quadrisulcata, and has a wide geographic range. 



95. Loeipes icteeica, Eeeve {Lucina), Mon., t. 10, f. 60. 

 Throughout South Australian waters, extending to New South 



Wales. 



Globose, white, finely concentrically and radiately striated. 



96. Cryptodox globostjm, Eorskal, Descript. anim. Egypt ; 

 Lucina ovum, Eeeve, Mon., t. 5, f. 21. 



Port Lincoln ; Salt Creek, and Holdfast Bay in St. Vincent 

 Gulf; Encounter Bay. Somewhat rare in a living state, but 

 abundant in the Pleistocene beds, Port Adelaide. Also New 

 South Wales, Queensland, Philippines, Eed Sea. 



Orbicular, swollen, thin, about one inch long. 



Family Uxgulixldje. 



97. Diplodonta g-lobtjlaris, Lamarck (Lucina), An. s. Vert., 

 v., p. 544 ; Lucina globularis, Eeeve, Mon., t. 9, f. 23. 



Eowler's Bay ; St. Vincent Gulf ; Encounter Bay. 



The Lamarckian type is from King George Sound ; and the 

 species also occurs in New Zealand, as recorded by Lamarck, 



Shell globose, inflated, subequilateral ; hinge line straight, 

 rounded at both ends. 



98. Diplodoxta Tasmaxica, Tenison- Woods, Proc. Eoy. 

 Soc, Tasm., for 1876, p. 158. 



Holdfast Bay. Also Tasmania ! 



Shell quadrately orbicular ; anterior side short, its margin 

 rapidly descending ; hinge line straight, posterior side wider 

 and depressed ; length and height, from one- third to an inch. 



.Family Ebycinidje. 



99. Moxtacuta merldionalis, Tate, antea, p. 68, t. 5, f. 4. 

 Shell sand, Aldinga Bay and Port Lincoln. 



Ovately orbicular, thin, transparent, rather inflated, concen- 

 trically finely striated ; length, three-eighths of an inch. 



100. Kellia sollda, Angas, Pro. Zool. Soc, 1877, p. 176, 

 t. 26, f . 25 ; Mysella anomala, Angas, P. Z. S., 1878, p. 870 (non. 

 Angas, 1877). 



