266 SERTULARIID^. 



less so at Wick. Oban, in from 15-20 fath. (T. H.) : Nor- 

 folk and Suffolk (C. W. P.): Ireland (W. T.). 



[Grand Manan, Bay of Fundy, in 20 fath., on shelly 

 bottoms (Stimpson): Labrador (A. S. Packard, jun.) .] 



With alternate calycles. 



5. S. ABIETINA, Linnseus. 



" SEA-FIR," Ellis, Corall. 4, pi. i. figs, b, B. 



SERTULARIA ABIETIXA, Linn. Syst. 1307; Pall. Elench. 133; Esper, Pflanz. 



Sert. t. 1. figs. 1, 2; Lamk. An. s. V. (2nd ed.) ii. 141 ; Lamx. 



Cor. flex. 189; Johnston, B. Z. 75, pi. xiii. fig. 1. 

 DYNAMENA ABIETINA, Flem. Br. An. 543. 

 LA SERTULAIRE SAPINETTE, Blainv. Actinol. 480, pi. 83. fig. G. 

 SEUTULARIA ABIETINULA, Dalyell, Anim. Scotl. i. 157, pi. xxv. figs. 6-13. 



Plate LV. 



STEMS thick, slightly flexuous, regularly pinnate ; branches 

 alternate, approximate, equidistant, simple or variously 

 ramified; HYDROTHEC^ comparatively large, croivded, 

 subalternate, swollen below, narrowed above into a short 

 neck, which is free and everted, with a plain, oblique 

 aperture; GONOTHEC^E subsessile, ovate, smooth, with an 

 even, shortly tubulous mouth. 



S. ABIETINA sometimes attains a height of a foot, and in 

 luxuriant specimens is much and irregularly branched. 

 In this state it is one of the handsomest of the British 

 Sertulari(B. It is robust in habit and of a yellowish horn- 

 colour : the shoots are gregarious and closely packed to- 

 gether ; from a fragment of shell about f of an inch in 

 length by ^ an inch in width, I have seen as many as twenty 

 springing. In its young state it is simply pinnate ; but 

 mature and well-developed specimens exhibit a very luxu- 

 riant and striking ramification. The main stem, through 

 a large part of its course, is set with simple pinrise, which 



