268 THE EEV. THOMAS BINCKS, F.E.S. 



which appeared in the Annals and Magazine of Natural 

 History for November, 1851, will serve well to illustrate 

 the interesting nature of so many of Mr. Hincks' memoirs. 

 After some account of the movements and functions of 

 avicularia and vibracula, important observations on the 

 so-called ^^ intertentacular organ " of Mcmhranipora pilosa 

 are described. This structure was discovered in 1837 by 

 Farre, but escaped the observation of almost every one 

 except Mr. Hincks until Prouho quite recently published 

 some results of great interest on this subject. Mr. Hincks' 

 paper then deals successively with the living polypides 

 of several species, the remarkable bivalved larvae of 

 Flustrella hispida, the interesting genus Mimosella (here 

 first described), whose zooecia continuall}^ move backwards 

 and forwards on the stem, a species of Pedicellina new to 

 the British Fauna, and the mode of escape of the larvae 

 of Alcyonidhim from the parent colon}^ 



This is only one illustration out of many which might 

 be given. The value of Mr. Hincks' results cannot be 

 better illustrated than by saying that no extended stud}- 

 of the Marine Polyzoa is possible without constant reference 

 to his work. The writer of the present article, who ha& 

 learned, by correspondence with Mr. Hincks, to appreciate 

 the kindness and courtes}^ of his disposition, and to be 

 grateful for the words of encouragement so readil}^ given 

 by him to a j^ounger worker in the same field, has no little 

 satisfaction in acknowledging here the warm admiration 

 which he feels for Mr. Hincks' published memoirs. 



