THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY 



" per litora spargite museum, 



Naiades, et circum vitreos considite fontes : 

 Pollice virgineo teneros hie carpite flores : 

 Floribus et pictum, diva?, replete canistrum. 

 At vos, o Nympha? Craterides, ite sub undas ; 

 Ite, recurvato variata corallia trunco 

 Vellite nn sec-sis e rupibus, et mihi conchas 

 Ferte, Deae pelagi, et pingui conchylia succo." 



N.Parthenii Giannettasii Eel. 1. 



No. 130. JULY 1847. 



I. — Biological Contributions. By George J. Allman, M.B., 

 F.R.C.S.I., M.R.I.A., Professor of Botany in Trinity College, 

 Dublin, late Demonstrator of Anatomy and Conservator of the 

 Anatomical Museum, T.C.D. 



[With two Plates.] 



[Continued from vol. xix. p. 370.] 



No. III. Description of a new Genus and Species of Entomostraca* . 



1 HE interesting little Crustacean which forms the subject of the 

 present notice, though apparently extensively distributed, would 

 seem to have hitherto received but little attention. The first re- 

 corded notice of its existence will be found in the ' Athenaeum ' 

 report of the Thirteenth Meeting of the British Association for 

 1843, from which it will be seen that at that meeting, Mr. Patterson 

 of Belfast mentioned the occurrence of a minute crustacean in 

 the branchial sac of Ascidia communis. The fact then noticed by 

 Mr. Patterson was at the time familiar to me, having previously 

 obtained the crustacean in Ascidia dredged in the harbour of 

 Glandore, county Cork, though I had not till a later period paid 

 any attention to its structure. 



In letters since received from Mr. Thompson of Belfast, to 

 whom the little animal was well known, and from Mr. Patterson, 

 I have obtained full information relative to the existence of the 



* Read before the Royal Irish Academy, April 12, 1847. 

 Ann. $ Mag. N. Hist. Vol. xx. 1 



r 



