134 TRANSACTIONS, NATURAL HISTORY SOCIKTV OF GLASGOW. 



XIV. 

 ENGLISH UPPER SILURIAN OSTRACODA. 



BY J. SMITH. 

 [Read 28th January, 1890.] 



In 1871 I first visited the English Silurian strata, 

 and brought home with me some of the decomposed 

 shale, collected chiefly from the neighbourhood of 

 Dudley. I found, on microscopical examination, that 

 this contained numerous microzoa, and in some of 

 the samples Ostracoda were rather common. At 

 that time I did not send any notice of them to any 

 society or magazine. 



In 1879 I again visited the English Silurians, and, 

 having collected and washed a large quantity of 

 shale from 17 localities, I obtained a very exhaustive 

 collection of Ostracoda. These I submitted to Pro- 

 fessor T. Rupert Jones, F.K.S., and sent a note on 

 them to the Geological Magazine, which appeared in 

 Februar}', 1881, Professor Jones having supplied a 

 provisional list of the then known genera and 

 species.* Although nothing was done towards work- 

 ing up the new forms until 1886, Mr. Vine of 

 Sheffield had in the interval placed his collection of 

 Silurian Ostracoda in the hands of Professor Jones, 

 who, along with Dr. H. B. Holl, F.G.S., published 

 two papers in the Annals and Magazine of Natural 

 Historxj for April and June, 1886, in which species 

 of the genera Beyrichia, Bollia, Kloedenia, Strepula, 

 Placentula, and Priviitia were described and illus- 

 trated by three i^lates.f After the death of Dr. 

 Holl, Professor Jones continued the investigation of 



* Geological Magazine, decade ii., vol. viii. (1881), pp. 70-75. 

 \ Annals and Magaiine of Natural Uiatory, vol. xvii. (Fifth Series), pp. 

 337-363, 403-414 ; pi. xii.-xiv. 



