Journal of conchology . Pisidium pusilJum Jenyns {—P. personatiim (Malm) B. B. Woodward). Magnified about 21 diameteis. From specimen in Hyndman Collection, Belfast Municipal Museum,labelled P. pusilluin. English. Mr. Jenyns to , del. Oct. 1917. It will be seen that Mr. Oldhams notes fully bear out my own con-clusions that Mr. Woodwards P. pusillum is that described by Jenynsas P. nitidum ; and that the P. pusillum of Jenyns is the P. persona-him of Mr. Woodward, and also includes forms of the latters I have obtained still further and quite independentevidence which

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Journal of conchology . Pisidium pusilJum Jenyns {—P. personatiim (Malm) B. B. Woodward). Magnified about 21 diameteis. From specimen in Hyndman Collection, Belfast Municipal Museum,labelled P. pusilluin. English. Mr. Jenyns to , del. Oct. 1917. It will be seen that Mr. Oldhams notes fully bear out my own con-clusions that Mr. Woodwards P. pusillum is that described by Jenynsas P. nitidum ; and that the P. pusillum of Jenyns is the P. persona-him of Mr. Woodward, and also includes forms of the latters I have obtained still further and quite independentevidence which points to the same conclusion. In the collection inthe Belfast Municipal Museum are five specimens sent by Jenyns toWilliam Thompson, labelled ?? Pisidium pusilhc7n. English. Mr. Jenynsto These were completely encrusted with a blackish coating,but upon being opened proved to be typical P. personatum. In thesame collection there exist two shells labelled Z. nitidum. Jenyns to , and these are ty

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Keywords: ., bookauthorconcholo, bookcentury1800, bookdecade1870, bookyear1879