162 CAMPANULARIID^. 



amongst icebergs, on Sertularia (T. H.) : Mingaii Islands; 

 Henley Harbour (20-30 fath.), Gulf of St. Lawrence (A. 

 S. Packard, jun.) : Massachusetts (Agassiz).] 



2. C. HINCKSII, Alder. 



CAMPANULARIA VOLUBILIS, var., Hincks, Ann. N. H. (2nd scr.) xi. 180. 



HINCKSII, Alder, North. & Durh. Cat. in Trans. Tynes. F. C- 



iii. 127, pi. iv. fig. 9. 



Plate XXIV. fig. 3. 



STEM generally long, with two or three rings at the top 

 (one of which is included in the cup) and one or two 

 slight tivists at the base, the intermediate portion smooth j 

 HYDROTHEC^E deep and very large, with parallel sides, 

 lined at regular intervals longitudinally, the margin cas- 

 tellated, or cut into square-topped denticles, which are 

 slightly hollowed out above; GONOTHEC.E of a much elon- 

 gated ovate form, becoming narrower towards the upper 

 extremity, which is truncate, divided by transverse rings 

 into numerous (10-12) rounded and not very prominent 

 segments, and attached by a short, smooth stalk. 



C. HINCKSII is remarkable for its large, lineated calycles, 

 with a castellated rim which is ornamented with as many 

 as fourteen square-topped denticles. The pedicels vary in 

 size, but are commonly of considerable length. 



The reproductive capsules are beautiful objects, very 

 long and slender, almost cylindrical in form, and usually 

 ringed throughout (Woodcut, fig. 18). The spaces between 

 the rings are very slightly convex and are not carinated. 

 In some cases, however, the annulation is almost obliter- 

 ated, and the capsule is in great measure smooth. 



The ova are numerous, and piled up like balls, forming 

 an elongated central mass. 



