354 



EEPOET on NEMEBTINES observed at POET 

 EEIN in 1894 and 1895. 

 By W. I. Beaumont, B.A. 



EMMANUEL COLLEGE, CAMBRIDGE. 



The observations on which the present Eeport is based 

 were for the most part made during a stay of six weeks at 

 Port Erin in June and the earlier half of July, 1895. A 

 certain amount of attention had been previously devoted 

 to the group during portions of March and April, 1894. 

 My thanks are especially due to Prof. Her dm an for 

 placing at my disposal the resources of the Biological 

 Station and for his ever ready help and encouragement, 

 and to Mr. T. H. Eiches of Caius College, Cambridge, for 

 very useful assistance and advice. 



In Mr. Vanstone's List {6) published early in last year 

 thirteen species of Nemertines were definitely reported as 

 occurring in the neighbourhood of Port Erin. With the 

 possible exception of the form therein recorded as Gari- 

 nella annulata, all of these have been observed by myself, 

 while eight additional species appear in the present 

 Eeport, viz.: Amphiporus pulcher, A. dissimulans , Tetras- 

 iemma flavidum, Prosorhochmics claparedii, Micrura pur- 

 purea, M. fasciolata, M. Candida, Gerebratulus fuscus. 

 The known Nemertine fauna of the district therefore 

 numbers twenty-one, perhaps twenty-two, species ; the 

 uncertainty depending on the identity of the species 

 appearing in the earlier Eeport as Garinella annulata, 

 Montagu. On the assumption which I believe to be 



