CELLEPORA AVICULARIS. 407 



CELLKPORA RAMCLOSA, forma AVICULARIS (part.), Smi/f, CEfr. K. Vet-Akad. 

 Forh. 18C.7, Bihang, 32 & 194, pL xxviii. figs. 202 4 205*. 



Zoarium incrusting, multiform, often nodulated. Zooecia 

 ovate, smooth, erect (in the older parts of the colony), 

 crowded, irregular, the apertures showiug at different 

 levels on the surface ; orifice orbicular above, with a 

 pointed sinus below ; peristome elevated, thin ; beneath 

 the aperture, and placed a little on one side of the sinus, 

 a rather massive rostrum, bearing a large avicularium 

 \vith pointed mandible, which is turned a little sideways. 

 Ocecia prominent, subglobose, rather broader than high, 

 with large punctures, frequently an ascending process 

 on each side or on one side, a little in front, bearing a 

 small avicularium, with a rounded mandible. Very 

 large spatulate avicularia abundant, irregularly distri- 

 buted. 



HABITAT. Incrusting the stems and branches of zoophytes 

 with thick nodulous rolls, on shells &c. from moderate 

 to great depths. 



LOCALITIES. South Devon and Cornwall, common, on 

 Sertularians, Gorgonia, &c. ; Oban (T. H.) : Hastings 

 (Miss Jelly) : St. Andrews, occasionally (Dr. M'Intosh) : 

 Shetland, on zoophytes (A. M. N.) : coast of Antrim 

 (Hyndman). 



GEOGRAPHICAL DISTRIBUTION. From Bahusia to Spitz- 

 bergen, pretty common, in moderate and abyssal depths 

 (Smitt): Naples, 10 fins. (Waters): Le Have bank, hit. 1'J 

 56''5 N., long. 64 51''3 W., 45 fms. (Smith and Harger). 



I believe that C. avicularis will be found to have a wide 

 distribution ; but hitherto it has been recognized in few 



* C. ai-icularis resembles in many points the C. Redoutei of Audouin, 

 figured in Savigny's ' figypte '; but, if the figure may be trusted, the two 

 must, I think, be accounted distinct Apart fn.ni other differences, there are 

 an order and regularity about the latter, wliii-h are certainly no characters of 

 the present form. With our present knowledge of Audouin's species, we 

 should not be warranted in identifying it with C. ariculu 



