FEOM THE COAST OF BEITISH COLUMBIA. 113 



It had been dredged by the writer before, in 1873, at a depth of 200 fathoms in the Gulf 

 of St. Lawrence. Other remarkable forms are double examples of Discorbina I ttriairnsif, 

 which are far from uncommon in Dr. Dawsou's dredgings ; large varieties of CrisleHnriii 

 rnltraln. and a Frondirularia which, although common a.s a fossil in the Chalk of Europe 

 and England, was previously unknown as a living species. 



Among the echiuodermata, the most interesting species collected is the Astrogonium 

 grnnii/are, which is new to the fauna of the Pacific. 



Of the lamellibranchiate bivalves, two, vix., Pecten Alaskensis and Yoldia thradceformis, 

 are arctic or subarctic shells which had not previously been taken so far to the south as 

 the Vancouver region, while, on the other hand, Limntiiln xitbauriculata and Ledu acutn are 

 species which have not hitherto been recorded as occurring so far to the north, on the 

 west coast of North America. 



The number of species of gasteropoda collected is unusually large, and among these, 

 Leptochiton cnncellatus, Bela violacea, Cancellaria ciri'inni-imiii, Admete viridula, and Sipfio 

 VerkruzKnl are northern forms new to the Vancouver district ; while Solariella peramabilis 

 ami Bin-twin sulik'iitiis are Californian shells now for the first time placed upon record as 

 living within it. Astarte undata and Eulima incurva (=distorta auct.) if correctly identified, 

 seem to be new to the fauna of the west coast of North America ; Margarita cidaris, of which 

 a line series w r as obtained, was previously known only from a single specimen ; and 

 Cadulus aben-anx and Leptochiton pinictatus are here described for the first time. 



It would appear that the outer and exposed western coast of Vancouver Island is 

 tenanted by a somewhat dilfercnt assemblage of marine invertebrata from that which lives 

 in its eastern, south-eastern and more land-locked waters. So far, Tellina Bodegensis, 

 Cadulus aberrant, Pachypoma gibberosum, Chlorostoma funebrale and Olive/la biplicata have been 

 found by the Survey collectors on the west and north coast of the Island only, while 

 Acmii'ii iitstiiliilif.. Cri/i>lobranchia concenlrirn, IJnliotis Kamtschatkana and Phorcus nulligo, though 

 not exclusively confined to the outer coast, appear to be rare in its eastern and south- 

 eastern waters. The exact geographical distribution of the different species around the 

 coast of Vancouver Island, however, has yet to be ascertained, and the preceding remarks 

 have only been written with the view of directing attention to the subject. 



For critical and valuable suggestions in regard to some of the mollusca collected, and 

 for the identification of eight species of gasteropoda, the writer is indebted to Mr. W. H. 

 Call of the United States National Museum at Washington. 



The following is a list of the species that have been identified so far. 



FORAMINIFERA. 



MILIOLTNA SEMINULTJM, L. Strait of Georgia at station No. 2, Discovery Passage at station 

 No. 7, and Queen Charlotte Sound at station No. It, one specimen at each. 



MIL.IOLINA FERUSSACII, fOrbigny. "With the preceding at station No. 17, one specimen. 



RIIABDAMMINA ABYSSORUM, M. Sars. Strait of Georgia at stations Nos. 4 and 5, Queen 

 Charlotte Sound at station No. 17, and Quatsino Sound at station No. 20, abundant 

 at each. 



Sec. IV., 1886. 15. 



