REPORT ON THE ANTIPATHARIA. 



81 



either radiate, oval and biradiate, or much elongated in the transverse axis. Mouth 

 rounded, or more usually elongated in the sagittal axis. Corallum simple or branched. 



Table of Genera. 



A. Indivis*. Corallum a simple flagellate stem, entirely without branches. 



1. Polyps disposed all around the stern, .... 



2. Polyps forming a single longitudinal row, on one aspect of the stem, 



B. Ramos.t.. Corallum branched, with or without confluence of branches. 



a. Polyps with twelve mesenteries in the oral cone, six below. 



3. Corallum dendriform, stem and thicker branches polished, without 



spines ; brancblets spinose; spines very small and distant, 

 /?. Polyps with ten mesenteries in the oral cone, sis below. 



4. Polyps large, rounded ; tentacles radiating, those in the sagittal axis 



inserted much lower than the others; corallum shrub-like ; branches 

 free; spines strong and usually numerous, 



5. Polyps small, oval ; tentacles disposed in two rows of three each; 



corallum extending more or less in one plane, with or without 

 confluence of branches ; spines usually short and somewhat 

 triangular, ....... 



6. Polyps obscure, oval, frequently hidden by the elongate spines ; 



tentacles very short; corallum pinnate, paniculate or flabellate, 

 with or without confluence of parts; spines elongate and slender, . 



7. Polyps forming oval cushion-like prominences on the ccenenchyma; 



corallum much branched and flabellate, with more or less fusion of 

 parts; spines short, as in Aniipathella, .... 



S. Polyps small, crowded so as to have a somewhat rectangular outline ; 

 sagittal tentacles inserted into the base of the polyp; corallum 

 flabellate; spines very long and stout, .... 



9. Polyps much elongated in the direction of the horny axis ; tentacles 

 elongate, arranged in couples, separated by a considerable interval ; 

 spines short and distant, ...... 



Cirripatlies(P)hL\YN.),emend. 

 Stichopathes, n. gen. 



Leiopathes (Gray), emend. 



Antipathes, Pall, {emend.). 



Antipathella, n. gen. 

 Aphanipafhes, n. gen. 

 Tylopathes, n. gen. 

 Pteropathes, n. gen. 

 Par antipathes, n. gen. 



Section! INDIVIS^E. 

 Genus Cirripathes (Blainv.), emend. 



Gorgonia (pars), Linn., Systema natural. 



Antipathes (pars), Auctt. 



Oirrhvpathes, Blainville, Manuel dActinol., p. 511 ; Dana, Zooph., p. 574; M. -Edwards, Coral- 



liaires, t. i. p. 313. 

 Cirrhipathes (pars), Gray, Proc. Zool. Soc. Lond., 1857, p. 290 ; Duchassaing and Michelotti, 



Mem. Acad. Torino, t. xix. and xxiii. ; Duchassaing, Rev. d. Zooph. &c, d. Antilles; 



Pourtales, Bull. Mus. Comp. Zool., 1880, &c. 



Antipathinas having an elongate unbranched corallum, around which the polyps 

 are distributed subspirally in several irregular rows, never in a single linear series. The 

 zooids are usually rounded in outline, and are provided with six tentacles arranged in a 



(ZOOL. CHALL. EXP. PART T.YXY. — 1889.) Llll 11 



