918 mr. g. f. angas on australian mollusca. [nov. 28, 



39. Gari (Amphich^na) menkeana. 



Psammobia menkeana, Reeve, Conch. Icon. pi. 6. f. 43. 



A pretty little species, somewhat resembling the British P. telli- 

 nella, Lam., of a yellowish or purplish white, faintly rayed with pale 

 rose-colour. Length 1 1 lines. Dredged near the " Sow and Pigs" 

 reef and in Middle Harbour. 



40. HiATULA EPIDERMIA. 



Soletellina epidermia, Desh. ; Reeve, Conch. Icon. pi. 1. f. 3. 



A somewhat rounded species, livid purple or orange near the urn- 

 bones, and covered with an olive epidermis. Length 2| inches. 

 This species ranges commonly from Port Jackson to Swan River. 



41. HiATULA BIRADIATA. 



Solen biradiatus, Wood, Gen. Conch, pi. 33. f. 1. 



Flatter and more elongated than the preceding species, zoned with 

 livid purple, with two white rays posteriorly and an olive-green epi- 

 dermis. Length 1 inch 9 lines. Middle Harbour. This is a com- 

 mon species in the South- Australian gulfs. 



42. HiATULA FLORIDA. 



Psammobia florida, Gould, Expedition, Shells, Proc. Boston Nat. 

 Hist. Soc. 1846. 



Soletellina donacio'ides, Reeve, Conch. Icon. pi. 3. f. 11, 1857. 



A transversely oblong thin species, livid purple, paler anteriorly, 

 with two faint posterior rays, and covered with a dark transparent 

 horny epidermis. Length 15 lines. Dredged in Illawarra Lake in 

 brackish water. 



43. Tellina (Tellinella) deltoidalis. 

 Tellina deltoidalis, Lam. Anim. sans Vert. vi. p. 206. 

 T. lactea, Quoy. 



A flattened, rounded, white shell, beaked posteriorly. Dredged 

 in Illawarra Lake and Botany Bay. Length 1^ inch. This species 

 varies greatly in size and aspect, and has a wide range over the 

 southern portion of Australia, Tasmania, and New Zealand. All the 

 specimens obtained in the Illawarra Lake are tinged with flesh-colour. 



44. *Tellina (Arcopagia) elliptica. 



Tellina elliptica, Sow. in Conch. Icon. Tellina, pi. 39. f. 223. 



A small, white, ovate, and somewhat flattened species, with the 

 posterior side the shorter. Dredged in Port Jackson. Length 

 5 lines. 



45. *Tellina (? Macoma) subelliptica. 



Tellina subelliptica. Sow. in Conch. Icon. Tellina, pi. 39. 

 f. 220 a, b. 



