22 CORALLIB^. 



Section III. Axis calcareous, solid, not jointed, uniformly calcareous to the 

 apex of the hrunchlets. 



Fam. 13. CORALLID^. 



Axis inarticidate, solid, calcareous, more or less hard aud stony. 

 Bark smooth, granular, with irregular-shaped calcareous spicula. 

 Polypiferous cells simple, more or less exserted. 



The chemical character of the axis may be easily discovered by a 

 small quantity of muriatic acid. 



CoralliiiEe, Dana, Expl. Expied, 1846, p. 639; Milne-Edw. Corall. i. 



p. 201. 

 Coralliinse, Dana, Exp. p. 639. 

 Isis, sp., Linn. S. N. p. 



Gorgoniese (part.), Lamx. Polyp. Flex. p. 363. 

 Corallida3, Gratj, P. Z. S. 1857, p. 286; Ann. ^- Mag. Nat. Hist. 1859, 



iv. p. 441 ; P. Z. S. 1859, p. 480. 



42. CORALLIUM. 



Coral tree-like, branched, forked. Axis hard, continuous, stony, 

 striated externally. Bark granular, without any lateral grooves, when 

 dry formed almost entirely of irregular spicula. Polypiferous cells 

 homogeneous, scarcely exserted from the surface of the bark, scattered 

 over the surface on all sides of the branches. Axis red. (See Ellis, 

 Zooph. t. 13. f. 3, 4.) 



Corallium, Lamk. 1813. 



Isis, Oheji, 1815. 



Corallium, Lamx. Bidl. Soc. Phil. 1812 ; Lamk. Mem. Mus. i. p. 407 ; 

 A. s. V. 1816, ii. p. 295, ed. 2. ii. p. 468 ; Schweigyer, Beoh. 1819, 

 t. 10 ; Milne-Edxvards iif Haime, Corall. i. p. 201 ; Gray, P. Z. S. 

 1867, p. 125. 



Isis, sp., Pallas, Elench. Zooph. p. 



Isis (uobilis), Oken, Lehrb. 1815, t. 2. 



Goi'gonia, sp., Solander i^- Eliis, Zooph. p. 90. 



Madrepora, sp., Linn. Syst. Nat. ed. 10. p. 793. 



101. Corallium rubrum. B.M. 



Corallium, Gesner, Fig. Lap. 132. 



Gorgonia iucrustaus, Aldrov. Mus. Metal, p. 290. 



Corallium rubrum, C. Baiih. Pin. p. 366 ; Rai. Hist. i. p. 60 ; Mercat. 



Metal, p. 114. 

 Corallum, Tournef. Inst. p. 572, t. 339 ; Marsil. H. Mar. p. 108, t. 22. 



/. 29, p. 168, t.'40. f. 180. 

 Isis rubra, Boyen, Prod. p. 521. 

 Corallum rubrimi, Donat. Adriat. p. 43, t. 5; Seha, Thes. iii. t. 115, 



f. 1-7. 

 Isis nobilis, Pallas, Elench. Zoojih. p. 223 ; Limi. S. N. ed. 12 p. 

 Madrepora rubra, Linn. S. N. ed. 10. p. 797 ; Ellis, Corall. p. 130, t. 35. 



f. a, h, c. 

 Gorgonia nobilis, Cjmcl. S. N. p. 3805, 



