16 MARINE POLYZOA. 



1. SALICORNARIA. 



Front of cell much depressed, surrounded by an elevated ridge, 

 by which the surface is divided into more or less regular rhorn- 

 boidal or hexagonal spaces; no aperture. Avicularia disposed 

 irregularly. 



Salicornaria, Guv. R. A. 1837; Johnst. Brit. Zooph. ed. 2. 355. 

 Farcirnia, Flem. Brit. Anim. 534; Johnst. Brit. Zooph. ed. 1. 

 Cellariaa, Lamk. Syn. 1801, 1812; Lamx. 1812; Blainv. 1830. 



The distinguishing characteristic of this genus., which consists 

 in the division of the surface of the branches into more or less 

 regular and uniform rhomboidal or hexagonal spaces, is sufficiently 

 obvious in all mature specimens ; but as the form of spaces is in 

 great measure dependent upon the degree of development of the 

 cells, whose fronts the spaces represent, little dependence can be 

 placed upon their mere form as a specific distinction. A better 

 distinction in doubtful cases will be found in an organ which 

 does not appear hitherto to have been noticed in this genus, viz. 

 the avicularmm, the form and position of which afford appa- 

 rently an invariable character as readily discernible and sufficient, 

 as a specific distinction, as does its presence or absence serve with 

 other characters to distinguish Salicornaria from its near ally 

 Nellia. 



1. SALICORNARIA FARCIMINOIDES. PI. LXIV. figs. 1, 2, 3; 

 PL LXV. (bis) fig. 5. 



Front of cell rhomboidal, or hexangular with a straight side at 

 top and bottom; sometimes arched above; cells in the same 

 series contiguous. Surface granular. Avicularium distinct from, 

 and above a cell, rostrum immersed, mandible semicircular. 



Salicornaria farciminoides, Johnst. Hist. Brit. Zooph. ed. 2. 



p. 355. t. 66. figs. 6, /; Gray, Cat. Brit. Rad. 

 Corallina fistulosa fragilis, Raii Hist. i. 65. 

 Corallina fistulosa fragilis, internodiis prselongis laevibus, albis, 



farciminum modo catenatis, Pluken. Phytog. pi. 26. fig. 2. 

 Bugle Coralline, Ellis, Corall. 46. no. 1. pi. 23. figs, a, A, B, C. 

 Eschara fistulosa, Linn. Syst. ed. 10. 804. 

 Cellularia Salicornia, Pall. Elench. 61. 

 Tubularia fistulosa, Linn. Syst. 1302; Oliv. Zool. Adriat. 267 ; 



Berk. Syn. i. 214. 



Cellaria farciminoides, Ellis and Soland. Zooph. 26. 

 Isis Hippuris, Fabr. Faun. Grce.nl. 427. 

 Cellaria Salicornia, Lamk. Anim. s. Vert. ii. 135, ed. 2. ii. 176 ; 



Bosc, Vers, iii. 129. pi. 28. fig. 6 ; Lamx. Expos. Method. 5; 



Corall. 55; Bull Sec. Phil iii. 185; Blainv. Act. 455. pi. 77- 



fig. 1. 



