ON DREDGING AMONG THE CHANNEL ISLES. 



Gastrochama dubia. 

 Pholas daetylus. 

 Candida. 



parva. 



Teredo pedicellata. 

 Dentalium Tarentinum. 

 Chiton discrepans. 

 Emarginula rosea. 

 Fissurella Grseca (probably). 

 Calyptrsea Obinensis. 

 Haliotis tuberculata. 

 Cyclostrema, Cutlerianuni. 

 Trocbus umbilicatus. 



lineatus. 



striatus. 



exasperates. 



granulatus. 



Pbasianella pidla. 

 Rissoa calathus. 



costulata. 



cremdata. 



lactea. 



pulebemnia. 



striatula. 



Aclis supranitida. 

 ascaris. 



Cbemnitzia scalaris. 



fenestrata. 



excavata. 



Odostomia dolioliformis. 



Warreni. 



— conspicua. 



Lukisi. 



Barleeia rubra. 

 Iantbina Britannica. 

 Triforis pidcbella. 



adversa. 



Nassa pygmrea. 

 Lachesis minima. 

 Murex corallinus. 

 Triton cutaceus. 



nodiferus. 



Tropbon muricatus. 

 Defrancia Pbilberti. 

 Mangelia rivfa. 

 Ovula patula. 

 Bulla cornea. 



bydatis. 



Aplysia pimctata. 

 Pleurobranchus plumula. 

 Otina otis. 



Melampus denticulatus. 

 Sepia elegans. 



Sealaria Turtoni. 

 Cbemnitzia simillima. 



In all, 81 species of Testaceous Mollusca. 



About tbe same number of species are found in Shetland but not in the 

 Channel Isles. The greater part of the British Mollusca are common to both 

 extremities. I estimate the total number to be 520. Of these may be 

 reckoned 80 as peculiar to each extremity (and 80 more as inhabiting 

 the intermediate area only) ; so that 360 is the probable number of species 

 belonging to the Channel Isles and Shetland. The Mediterranean has from 

 700 to 800 species. 



II. Species not observed north of the Channel Isles : — 



Argiope decollata, 

 Lepton sulcatulum, 

 Cardium papillosum, 

 Teredo pedicellata, 

 Chiton discrepans (probably), 

 Emarginula cancellata ?, 

 Rissoa pulcherrima, 



Bissoa lactea, 

 Purpura haunastoma ?, 

 Murex corallinus, 

 Triton cutaceus, 



nodiferus, 



Bulla bydatis, 

 Sepia elegans, 



being 14 species, of which 2 are doubtful as natives of the British, seas. 



Report on the Cultivation of Oysters by Natural and Artificial 

 Methods. By Frank Buckland, M.A., M.R.C.S., §-c. 



Feeling highly honoured with the confidence you have placed in me to_ in- 

 quire into this subject— important not only in a physiological but also in a 

 commercial bearing — I have since the last Meeting used my best endeavours 

 to obtain all the facts and all the information circumstances and labour would 

 allow — and this not only near at home, but also at distant localities. I would 



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