1867.] mr. g. f. angas on australian mollusca. 215 



179. Clanculus gibbosus. 



Clancuhis gibbosus, A. Ad. P. Z. S. 1851, p. 162. 



Under stones in Port Jackson; less abundant than either of the 

 two former species. In this species the whorls are rounded, not 

 keeled, and the spire is more depressed. Height 4 hues. It is also 

 found in South Australia. 



180. EuCHELUS BACCATUS. 



Monodonta baccata, Menke, Moll. Nov. Holl. p. 14. no. 51. 

 Adhering to the under surface of stones at low water near Port 

 Jackson Heads. It occurs also in South Australia. Length ^ inch. 



181. *EUCHELUS SCABRIXJSCTJLUS. 



Euchelus scabriusculus, A. Ad. & Ang. MS. in Coll. Cum. 



A very small species, differing from E. baccatus in its cancellated 

 sculpture and being umbilicated. Under stones in Port Jackson. 

 Length 2 lines. 



182. Thalotia zebrides. 



Thalotia zebrides, A. Ad. P. Z. S. 1851, p. 173. 



Common amongst the rocks in various parts of Port Jackson. 

 The whorls are granulately ridged, and painted with dusky flames 

 below the sutures. Length 1 1 lines. 



183. EUTROCHUS SCITULUS. 



Ziziphinus scitulus, A. Ad. P. Z. S. 1854, p. 38; Reeve, Conch. 

 Icon. Ziziphinus, pi. 6. f. 44. 



This shell differs from a true Ziziphinus in being deeply umbili- 

 cated. It is found at Watson's Bay, Rose Bay, and in North Har- 

 bour under stones at low water. Height 8 lines. 



184. *Canthiridus tiberianus. 



Trochus tiberianus, Crosse, Journ. de Conch. 1863, p. 381, pi. 13. 

 f. 2. 



This beautiful little species is of a pearly yellowish olive-colour, 

 painted with white flames. It is found on sea-weed at low water 

 amongst the rocks at Coodgee Bay. Height 2^ lines. 



185. Elenchus badius. 



Trochus badius,Wood, Ind. Test. Supp. pi. 6. f. 46. 



Middle Harbour, Port Jackson, in deep water. Of an olive colour, 

 red towards the apex, with the interior of a brilliant iridescent green. 

 Length 1 inch 3 lines. 



186. Elenchus apicinus. 



Motiodonta apicina, Menke, Moll. Nov. Holl. p. 15. 

 This lovely species may be easily recognized by the fine pencilling 

 of the whorls, which becomes stronger below, and forms a striped 



