THE ESSEX FIELD CLUB. 29I 



include them in the English molluscan fauna and noted that all 

 attempts to obtain additional examples had failed. ^ Since the 

 figure oi Rissoa castanea somewhat resembled Paltidestrina jenkinsi 

 there seemed a probability that the former might be represented in 

 the Jeffreys' collection now at Washington, U.S.A. Examples 

 of the latter were accordingly forwarded to Dr. W. H. Dall, who 

 most kindly replied that there were no examples of Rissoa castanea, 

 Jeffreys, in that collection, but there were two examples, agreeing 

 in every respect with the specimens of Palndestrinaj enkinsi forwarded, 

 which were labelled : — " Hydvohia fevntsina, Hampshire, Sowerby." 

 There can be no doubt that these are the shells which Jeffreys 

 states had been sent to him some years ago by the late G. B. 

 Sowerby from that county.* We have thus conclusive proof 

 that Paludestvina j enkinsi had been examined by Dr. Jefiress and 

 misidentified. 



When we noted this in the Proc. Malac. Soc, Loud., vol. iii., 

 p. 299, Canon R. M. Norman informed us that he had in 

 his possession four examples given to him by Mr. Pickering 

 as Rissoa castanea, and most kindly forwarded the specimens 

 for our inspection. Of these, two were slender examples of 

 Paliidestnna ventrosa and two P. jenkinsi. Additional proof is 

 thus furnished that the shell has been both overlooked and 

 mis-identified. 



THE ESSEX FIELD CLUB. 



PRACTICAL DREDGING AND TRAWLING 

 EXCURSIONS. 



Friday and Saturday, July 20th and 2ist, igoo. 



For some time past it has been recognised that if any real and rapid 

 advance is desired in the knowledge of the Fauna of our Essex coast line, 

 systematic attempts must be made to collect, determine and register the 

 species occurring. And now that the Club has a permanent County Museum, 

 such work is still more desirable, in order to stock the Museum with an 

 authentic series of specimens. 



The Council therefore authorised the Curator to make a beginning in this 

 work, and the Colne Estuary and outlying waters was chosen as tlie scene of 

 the first attempts. Arrangements were made, by the kindness of Messrs. 

 Forrestt and Son, for the hire of a small steamer, with dredger-man and 

 tackle, so that operations may be carried on at some distance from the shore 

 (the Wallet and like waters). 



5 British ConchulogY, vol. i., pyi. 68-9. 



6 Ibid, p. 69. 



