foause] 
IV. Notice of a Collection of Nudibranchiate Moilusca made in India by Watrer Exxior, 
Esq., with Descriptions of several New Genera and Species. By Josuua ALDER 
and AuBany Hancock, F.L.S. 
Read May 12, 1863. 
[Prates XXVUI.—XXXIIL. | 
‘THE Nudibranchiate Mollusca which form the subject of the present paper were 
collected, chiefly during the years 1853 and 1854, at Waltair, in the Presidency of 
Madras, by Walter Elliot, Esq., of Wolfelee, Roxburghshire, while Commissioner of 
the Northern Circars in that Presidency. They supply a most interesting addition to 
our knowledge of the molluscan fauna of the Indian Seas, the more especially as Mr. 
Elliot has not only preserved the animals themselves for examination, but has caused 
beautiful and accurate drawings of each species to be made in the living state. These 
drawings, from which the accompanying plates are engraved, were made by native 
Hindoo artists. Besides the species here described, Mr. Elliot’s collection contains 
specimens and drawings of many other interesting Mollusca, in the allied families of 
Diphyllidiade, Pleurobranchide, Bullide, and Aplysiade, which may possibly afford 
materials for some future memoir. Mr. Elliot has favoured us with the following 
account of the locality where most of the specimens were procured :—‘‘ Waltair is a 
suburb of the town of Vizagapatam, the capital of a province of the same name, one of 
the Northern Circars. The coast south of Vizagapatam is flat and sandy, with a heavy 
surf, which is unfavourable to the existence of naked Mollusks ; but the whole of the 
coast of Vizagapatam is rocky, and sometimes precipitous, abounding in bays filled with 
rock and shingle, amongst which the delicate forms of the creatures you have been 
describing find shelter. Immediately to the north of Waltair is one of these bays, called 
Lawson’s Bay, in which a large proportion of the specimens were found; but I em- 
ployed men to search along a more extended line, both north and south of the bay. 
Most of the species were taken between tide-marks, and only one or two in deep water.” 
In addition to this fine collection, so kindly placed in our hands by Mr. Elliot, we 
were favoured by the late Dr. Kelaart with a large collection of drawings, representing 
the species described by him in the Ceylon branch of the ‘ Journal of the Royal Asiatic 
Society,’ together with many of the specimens preserved in spirit. These have aftorded 
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