ON THE LABORATORY OF THE MARINE BIOLOGICAL ASSOCIATION. 547 



Of the twenty-five species not hitherto found on our coasts, but now 

 known to live in Plymouth Sound, two — Vorticeros luteum and CylindrO' 

 stoma merine — were already found by Hallez at Wimerenx. 



The following eleven were previously known, through the researches 

 of Oscar Schmidt, Uljanin, and von Graff, to occur in the southern seas 

 of Europe {Promesostoma ovoideum was, however, already known to range 

 to Greenland). 



Proporus venenosus (O. Sch.). 



Monoporus rubroyunctatus (O. Sch.). 



Promesostoma ovoideum (O. Sch.). 



Promesostoma solea (0. Sch.). 



Mesostoma neapolitanum (?), v. Graff.' 



Hyporhynchiis penicillatus (?) (O. Sch.). 



Plagiostoma Girardi (O. Sch.). 



Plagiostoma sagitta (Ulj.). 



Plagiostoma siphonophorum (?) (O. Sch.). 



Monoophorum, striatum, (v. Graff). 



Automolos ophiocephalus (O. Sch.). 



Eight were previously recorded by Jensen and Levinsen from the 

 <5oasts of Norway and Greenland respectively, namely — 



Aphanostoma elegans, Jensen. 

 Proynesostoma agile (Lev.). 

 Byrsophlebs Graffi, Jensen. 

 Hyporhynchus annatus (Jensen). 

 Plagiostoma dioicum (Metschnikoff). 

 Plagiostoma caudatum, Lev. 

 Cylindrostoma elongatum. Lev. 

 Monotus albus, Lev. 



¥otir are new, namely — 



Provortex rubrohacillus. 

 Plagiostoma pseudoviaculatum. 

 Plagiostoma elongatum. 

 Automolos horridus. 



The results of my investigations on the Turbellarian fauna of Ply- 

 mouth and its distribution in the Sound have been published in greater 

 detail in (1) the ' Journal of the Marine Biological Association ' (N.S., 

 vol. iii., No. 1, May, 189.3) ; and (2) the ' Quarterly Journal of Micro- 

 scopical Science,' No. cxxxvi., April, 1893, where I have given an account 

 of the British Marine Turbellaria, including descriptions and the synonymy 

 of all species hitherto known to have occurred on our coasts. 



July 2, 1893. 



II. Report on the Occupation of the Table. By Mr. Edgar J. Allen, B.Sc. 



Commencing work at the Plymouth Laboratory on June 3, 1892, 

 I occupied the table of the British Association for six weeks, my 

 stay being prolonged for another month through the kindness of Mr. Robert 

 Bayly, who furnished me with an additional nomination. 



' The bracketed query indicates that corroboration of the occurrence of these 

 species is desirable. 



N N 2 



