98 mr. g. f. angas on australian mollusca. [jan. 17, 



84. Myonia speciosa. 



Monoptygma speciosa, A. Ad. in Sow. Thes. Conch, pi. 172. 

 f. 24, 25. 



A very beautiful thin species, of a pale horn-colour, with the spiral 

 ridges of the whorls deeply punctured. 



Lane Cove, Port Jackson ; dredged in 3 fathoms in sandy mud 

 {Brazier). 



85. Ringicula caron, Hinds, P. Z. S. 1844, Voy. Sulphur, 

 p. 47, pi. 16. f. 15, 16. 



In this species the spire is lengthened and exserted, the last whorl 

 is rounded, the shell is closely grooved throughout, with striae at 

 regular intervals, and the edge of the outer lip is slightly corrugated. 



Goat Island, Port Jackson ; dredged in 10 fathoms, mud {Brazier); 

 Straits of Malacca {Hinds). 



86. Ringicula denticulata, Gould, Otia, p. 121. 



The numerous striae (finer ones intervening), denticulate labium, 

 and scantiness of callus about the siphonal notch mark this species. 

 Port Jackson {Gould). 



87. Ringicula exserta, Hinds, P. Z. S. 1S44, p. 97. 

 Smaller and more elongated than B. caron, with the spire ex- 

 serted, shining, and nearly smooth. 



Dredged near the "Sow and Pigs," Port Jackson {Brazier); Phi- 

 lippines {Hinds). 



88. Ringicula arctata, Gould, Otia, p. 122. 



In this species the aperture is auricular, the outer lip very much 

 thickened, and the whorls finely, distantly striated at the lower part. 

 Goat Island, Port Jackson {Brazier); Hong-Kong harbour {Gould). 



Fam. Bullid^e. 



89. Bulla (Haminea) tenera, A. Ad. Thesaurus Conch. Bui- 

 lidce, p. 583, pi. 124. f. 103. 



A small, pellucid, yellowish horn-coloured species, with very mi- 

 nute, close-set transverse lines when seen through the lens. 



Sand Spit, Middle Harbour, Port Jackson, on seaweed {Brazier). 



Fam. Lophocercid^e. 



90. Cylindrobulla fischeri, A. Ad. & Angas, P. Z. S. 1864, 

 p. 37. 



Lane-Cove River, Port Jackson, in mud {Brazier). 



Fam. Aplysiid^e. 



91. Dolabrifera brazieri, Sow. P. Z. S. 1870, p. 250. 

 Taken at the "Bottle and Glass" rocks, Port Jackson {Brazier), 



