Order Lucernarico. 559 



Haliclystus.* H. James-Clark. 



Disc umbellaDform ; arms more or less prolonged : pedi- 

 cel tetracamerous : tentacles all alike, in groups at the 

 end of the arms, the radial and transverse diameter of the 

 groups equal: marginal anchors pistilliform, or faba^form : 

 genitals double ; the halves of each genital distinct from 

 each other, the space between their proximal ends occupied 

 by the digitiform bodies ; each band extends to the base 

 of the tentacles; the saccules distinct and prominent: 

 pedicel muscles four distinct, equidistant cords, alternat- 

 ing with the four camerse : principal muscles of the disc 

 pennate, diverging on each side of the partitions; margi- 

 nal muscle a band of varying breadth, very thin at the 

 base of the tentacles and anchors: gelatiniform layer of 

 varying thickness in the disc ; very thick in the pedicel, 

 occupying all the space not appropriated for the four 

 camerae and the four muscular cords. 



Haliclystus auricula. H. James-Clark. 



Lticernaria auricula, Rathke, (non. Fabr.) Miill. Zoiil. 



Dan. Vol. IV. 1806, p. 35, (ex- 



clus. synon.). PI. CLTI. 

 « « Montagu, Trans. Linn. Soc. 1808, 



p. 113 (exclus. PI. VII. fig. 5.) 

 « « Lamx. Mem. Mus., 1815, tom. 2d, 



p. 471 (exclus. synon.), partim. 

 " " Fleming, Hist. British Animals, 



1828, p. 499 (excl. syn. Fabr.) 

 « « Cuvier, Regne An. IV. 1817, p. 53. 



« « Cuvier, Regne An. III. 1830, 2d 



ed. p. 294. 



" " Johnston, Mag. Nat. Hist., Jan. 



1832. V. p. 43, fig. 29. 



* Haliclystus; oAf, the sea, kXi^u, to dash upon. 



