14 THE VICTORIAN NATURALIST. 



trimaculata, Chp. ; P. nigerrima, Germ., van ; P. lineata, Marsh. ; 

 Aphela algarum, Pasc. — J. A. Kershaw. 



MoLLUSCA. — Conchologically speaking, the neighbourhood of 

 Shoreham is a veritable paradise, for not only is there an abun- 

 dance of species that can be closely examined in their natural 

 habitat, but a large number of rare and beautiful forms may be 

 obtained here with ease that appear, so far as present investigation 

 has gone, to be entirely absent from other parts of our coast. 

 Whilst collecting here one cannot help being struck by the 

 difference in Port Phillip, many species extremely common in the 

 latter place being uncommon in Western Port, and vice versd, but 

 for richness in species Western Port is easily first. Of course 

 allowance must be made for variations in quality of any shell- 

 collecting ground, differences in wind and tide having consider- 

 able effect. This was well exemplified when we first arrived at 

 Shoreham, many of our party being extremely sceptical about the 

 locality being favourable for shells, and our work at first was con- 

 fined to collecting living species under the rocks at low tide, but 

 after a few days of natural sorting by quieter waters in the bay, a 

 splendid lot of material began to wash up on some of the beaches, 

 and, to our regret, we had to leave when there was every prospect 

 of daily improvement. The results from the few days at our 

 disposal speak for themselves in that the material obtained, as far 

 as I have been able to summarize it, includes representatives of 

 at least 135 genera and 253 species. Here the contrast with 

 Port Phillip can be clearly seen, for it takes considerable time 

 and patience to secure even from the best beaches anything 

 upwards of 100 species. 



Amongst the families that may be stated to be specially re- 

 presented we have the Marginellidae, Columbellidse, Pleurotomidae, 

 and Trochidse. 



The genera most worthy of mention are Colubraria, Zemira, 

 Lyria, Ancilla, Cancellaria, Eunaticina, Mitrularia, Adeorbis, 

 Crossea, Astele, and Gena. 



The more interesting species obtained were : — 



Murex australis, Quoy and 



Gaimard 

 Murex angasi, Crosse 

 Colubraria bednalli, Brazier 

 Zemira australis, Sowerby 

 Voluta undulata, Lamarck 

 Lyria mitrseformis, Lamarck 

 Marginella flindersi, Pritchard 



and Gatliff 

 Olivella leucozona, Adams and 



Angas 

 Columbella cominellaeformis, 



Tate 



Cancellaria spirata, Lamarck 

 Terebra albida. Gray 

 Terebra kieneri, Deshayes 

 Margilia adcocki, Sowerby 

 Margilia alucinans, Sowerby 

 Raphitoma harrisoni, T. Woods 

 Conus rutilus, Menke 

 Conus segravei, Gatliff 

 Erato denticulata, Pritchard 



and Gatliff 

 Natica sagittata, Menke 

 Natica shorehami, Pritchard 



and Gatliff 



