Dr. J. E. Gray on the Fleshy Alcyonoid Corals. 129 



externally ; branches and polype-cells with superficial spicules. 

 Polype-cells subcylindrical, incurved. Polypes retractile. 



1. Nephthya, Savigny. 



Coral fleshy, with a large horizontal basal mass. Stem 

 erect, divided above into heads or spikes of polypes ; branches 

 and polype-cells with many large superficial and few internal 

 spicules. Polype-cells crowded on all sides of the ovate club- 

 shaped terminal branchlets. Polypes half-retractile, leaving an 

 incurved tubercle covered with fusiform spicules. 



1. Nephthya Savignii, Ehrenb., Savigny, Polyp. Egypte, t. 2. 



f. 5. (N. Chabrolii, Audouin. N. innominata, Blainv.) 

 Hab. Red Sea. B.M. 



2. Nephthya polyanthus. (Ammothea polyanthus, Duchass. & 



Michel. 15, t. 1. f. 6.) 

 Hob. West Indies. 



3. Nephthya parasitica. (Ammothea parasitica, Duchass. & 



Michel. 15, 1. 1. f. 3, 4, 5.) 

 Hab. West Indies. 



4. Nephthya aurantiaca, Verrill. 

 Hab. China Seas. 



2. Ammothea, Savigny, Pol. Egypte. 



Coral fleshy, with a horizontal creeping basal mass. Stem 

 erect, divided above into heads or spikes of polypes. Stem and 

 branches with very few minute superficial spicules, and with 

 many internal spicules. Polype-cells crowded on all sides of 

 the oval club-shaped terminal branchlets ; polype-cell sub- 

 cylindrical, incurved, lobed at the mouth. 



AmmotJiea virescens, Savigny, Polyp. Egypte, t. 2. f. 6. 

 (Nephthea Cordieri, Audouin. Neptea Savignii, Blainv.) 

 Hab. Red Sea. B.M. 



3. Capnella. 



Coral erect ; stems clustered, coriaceous, granular, divided 

 into short branches ; outer surface studded with small, flat, 

 smooth, irregular-shaped spicules. Polype-cells crowded and 

 imbricate on all sides of the oval club-shaped branchlets ; 

 polype-cell campanulate, slightly eight-lobed. Polypes re- 

 tractile. 



Capnella imbricata, Quoy & Gaim. Voy. Astrol. iv. 281, t. 23. 

 f. 8-14. (Ammothea imbricata, M.-Edw.) 

 Hab. New Zealand, Australia. B.M. 



Ann. & Mag. N Hist. Ser. 4. Vol. iii. 9 



