88 



ON THE PHORONIDEA 



By a. meek. 



CONTENTS. 



PAGE, 



1. — Phoronis ovalis and Adinotrocha brancMafa 33 



2.— Species of Phoronis 39 



3.— Species of Actinotrocha 41 



4.— Development a^b Structure 43 



5.— Position of the Phoronidea 46 



I,— PHORONIS OVALIS AND ACT IN OT ROC HA 

 BRANOHIATA. 



An interesting and important paper has been published this 

 year by Harmer -^ in which the rediscovery of Strethill Wright's 

 Phoronis ovalis is recorded. In 1856 Strethill Wright pubHshed 

 his account of Phoronis hippocrepia got at Ilfracombe, and of 

 Phoronis ovalis obtained from an oyster shell dredged near Inch- 

 keith, in the Firth of Forth. Harmer found on examining an 

 empty shell of Neptunea antiqua sent to him from the Cullercoats 

 Laboratory that Phoronis ovalis and other animals and algae 

 occupied burrows in the shell. 



The record is of interest to the Laboratory, for the shell was 

 procured from 16 fathoms to the north-east of Cullercoats, and it 

 is particularly interesting to me, for before the paper, was pub- 

 lished, I had taken out and dusted a research I made in 1890-91 

 at St. Andrews in the old Marine Laboratory (where before the 

 present Gatty Laboratory was erected so many workers obtained 

 their training in marine zoology ; workers now scattered all over 

 the world, who retain many pleasant recollections of the old 

 laboratory, and recall with feelings of pride and thankfulness 

 the help they received from their distinguished leader. Professor 

 Mcintosh). The investigation done at St. Andrews referred to the 



* " On Phoronis ovalis," Strethill Wright. Quart. Jonr. Micros. Sc, vol. 62. 1917. 



