926 MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. [NoV. 28, 



Order LUCINACEA. 

 Fam. LuciNiD^. 



85. LUCINA SIMPLEX. 



Lucina simplex, Reeve, Concli. Icon. pi. 3. f. 11. 



A neat white species, finely concentrically ribbed, and cancellated 

 with very fine longitudinal striae. Botany Bay. Length 9 lines. 

 In North Australia this species attains the size of 15 to 18 lines. 



8G. Lucina (Codakia) rugifera. 



Lucina rugifera, Reeve, Conch. Icon. pi. 1. f. 1. 



A solid elaborately sculptured species, allied to L. tigrina and L. 

 exasperata, white within and without. Found at low water amongst 

 the rocks at Watson's Bay and Middle Harbour, Port Jackson ; and 

 at WollongoDg and other rocky places along the coast. Length 

 2\ inches. 



87. Lucina (Codakia) parvula. 



Lucina parvula, Grould, * Otia,' p. 174. 



This little species is somewhat produced anteriorly, concentrically 

 ridged, and divaricately sculptured at the sides : yellowish white. 

 Dredged in Port-Jackson and Botany Bays. Length 4 lines. The 

 localities of Gould's types are China and Japan. 



88. LORIPES TUMIDA. 



Lucina tumida, Reeve, Conch. Icon. Lucina, pi. 5. f. 22. 



An orbicular, swollen, thin shell of a dull white colour, super- 

 ficially concentrically striated, and covered at the sides with a very 

 fine epidermis radiately wrinkled here and there. Dredged in Port 

 Jackson. Length 1 inch. 



The Lucina ovulum of Reeve appears to be only the young state 

 of this species. 



89. LoRIPES OVUM. 



Lucina ovum. Reeve, Conch. Icon. Lucina, pi. 5. f, 21. 



Less inflated than the preceding species, more truly orbicular in 

 outline, and of a clear yellowish white. Dredged in Botany Bay. 

 Length 1 1 lines. 



90. LORIPES ICTERICA. 



Lucina icterica, Reeve, Conch. Icon. Lucina, pi. 10. f. 60 a, b, 

 A small white species, finely concentrically and (under the lens) 

 radiately striated. The ligament, in this as well as in the following 

 species, is situated in an oblique internal pit. Botany Bay ; also in 

 St. Vincent's Gulf, South Australia. Length 5 lines. 



91. *LoRIPES ASSIMILIS. 



Loripes assimilis, Angas, anteh, j). 910, PI. xliv. f. 8. 



