THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[THIRD SERIES.] 

 No. 38. FEBRUARY 1861 



X. — On Clavatella, a new Genus of Corynoid Polypes, and its 

 Reproduction. By the Rev. Thomas Hincks, B.A. 



[Plates VII. & VIII.] 



During the past summer I have obtained, in the neighbourhood 

 of Torquay, a Corynoid polype which presents some very inter- 

 esting pecuHarities, and will constitute the type of a new genus. 

 It occurred in the small basins scooped out in the masses of 

 limestone with which the shores of Torbay are, in many parts, 

 so thickly strewn — snug retreats which afford a home to large 

 Invertebrate populations and are crowded with forms of beauty. 

 Amongst forests of Laomedea fiexuosa and companies of the 

 Daisy Anemone, in possession of every chink and cranny, and 

 scattered colonies of the exquisite little Zoanthus sulcatus, a quick 

 eye may detect here and there groups of minute, milk-white, 

 thread-like bodies, which on closer examination show themselves 

 to be graceful clavate polypes of the Corynoid order, but of a 

 new generic type. To furnish an account of their structure and 

 life-history is the object of the present paper. 



I shall first define the genus which it is necessary to consti- 

 tute for their reception. 



Subkingdom CCELENTERATA. 

 Class HYDROZOA. 

 Order CORYNIDJE. Fam. CoryniadaB. 

 Clavatella, nov. gen., Hincks. 

 Polypes naked, clavate, extensile, rising at intervals from a 

 creeping filiform base ; tentacula capitate, arranged in a single 

 verticil round the head. Reproduction by means of free 

 Ann. ^ Mag. N. Hist. Ser. 3. Vol. vii. G 



