REPORT ON THE ALCYONARIA. Ixv 



the remark of the authors that it is nearly related to Blepharogorgia = Acanthogorgia. 

 Similarly Bmndella intricata, Gray, is a Muriceid, and Wrightdla, Gray, belongs to 

 the Melitodida}. 



The following genera have been as yet distinguished : — 



1. Nicella, Gray. 



2. Scirpearia, Cuvier, emend. Studer. 



3. Scirpearella, n. gen. 



4. Juncella, Valenciennes, emend. 

 Studer. 



5. Ellisella, Gray, emend. Studer. 



6. Verrucella, Milne-Edwards. 



7. Gorgonella, Milne-Edwards. 



8. Cteuocella, Valenciennes. 



9. Phenilia, Gray. 



10. Heliana, Gray. 



1. Nicella, Gray, Cat. Lithophytes Brit. Mus., p. 40. 



The colony is upright, branched, with a thin ccenenchyma and protruding verrucae, 

 which arise perpendicularly and appear to be terminally truncated. The pol}'ps arise 

 from either side of the stem and branches leaving a middle space free. The spicules form a 

 cortical layer of small double clubs and an internal layer of long, densely warty 

 spindles. 



2. Scirpearia, Cuvier, Rt?gne Anim., Nouv £d., t. iii. p. 319, 1830. 



The colony is simple, with a cylindrical calcified axis and thin ccenenchyma. The 

 polj'ps are seated in two longitudinal rows on each side of the stem. The sjiicules are 

 double clubs and spindles. The genus may include Scirpearia mirabilis, Cuvier, and 

 Viminella fiagellum. Gray. 



3. Scirpearella, n. gen. 



Colony simple or very feebly branched. Axis calcareous, brittle, smooth or grooved. 

 Polyps arranged in rows or spirals, retractile with rather more or less prominent vernicaa. 

 The ccenenchyma is moderately thick and finely granular. The spicules are spiny 

 spindles and double clubs. 



4. Juncella, Valenciennes, ex parte, Comptes rendus, t. xli. p. 14 ; Kulliker, Icones 



histiologicse, pt. ii. p. 140; Studer, Monatsber. il. k. preuss. Akad. d. Wiss, 

 Berlin, p. 659, 1878. 



The colony is simple or branched, the polj'jjs are sometimes small, tlisposed in two 

 lateral rows, sometimes with well-developed and elongated verrucje. The ca'nenchyma 

 is thick, with an external layer which contains simple and double clubs. 



