SYNCORYNE PULCHELLA. 57 



the thickest portion of the body; GONOPHORES pyri- 

 form, reddish, on short peduncles, borne behind the 

 lowest tentacles. 



UMBRELLA of the free zooid bell-shaped, the height and 

 width about equal, with four interradial furrows* ; MA- 

 NUBHIUM lageniform ; MARGINAL TENTACLES springing 

 from bulbous bases, each with a dark ocellus, nodulated 

 with thread-cells, and terminating in a larger spherical 

 cluster. 



THIS species is nearly related to the preceding. The small 

 number of tentacles is one of the chief distinctive cha- 

 racters. The gonophores also, apparently, are not scattered 

 amongst the tentacles as in S. gravata, but are borne 

 behind the lowest. 



I have not had the opportunity of examining specimens ; 

 but Mr. Alder's drawing from which our figure is taken, 

 and which may be trusted for its accuracy, shows that the 

 form of the polypite is peculiar. The oral extremity is 

 elongated and narrowed ; immediately below it the body 

 swells out for a short distance, and then tapers off gra- 

 dually towards the base. The tentacles, which are rather 

 long and slender, are distributed over the thicker portion 

 of the body. 



The species requires further investigation. 



Hab. Firth of Forth (T. S. W.). 



5. S. PULCHELLA, Allmau. 



"Notes on the Hydroida,'' Annals N. H. for June 1865. 



STEMS unbranched and attaining a height of about half an 

 inch, not annulated, but with a few shallow transverse 

 corrugations towards the base, of an orange colour ; POLY- 



* "An milieu de 1'intervalle des canaux se trouvc un sillon qui parait occupe 

 par nil cordon tendinous, duquel partent des fibres contractiles." Dujardin. 



