Serialaria. 
Z. ASCIDIOIDA. 
251 
ed under each bend, and the branchlets at each division, and they are 
perforated with a single series of rather distant holes with a raised 
rim as if they had been bored from within outwards : cells three between 
each joint, deciduous, oval, transparent. — “ The animals are very easi- 
ly seen in all their details in this species, from the great transparency 
of the vesicles, and are provided with eight tentacula,” Thompson ? 
which “ are ciliated but not armed with spines.” Farre. 
The holes in the sides of the capillary branches mark the places 
whence the polype-cells have fallen. The spine-like points in which 
the divisions of the branchlets terminate have suggested the Linnean 
specific name ; and that of Ellis and Pallas expresses the silky ap- 
pearance which dried specimens exhibit. Ellis has well marked the 
distinctions which separate the species from the Sertulariadse. “ The 
motion of the intestines of the young Polypes was very distinguish- 
able till the water became putrid ; and then both vesicles and poly- 
pes dropped off, like blighted blossoms off a tree ; and the substance 
of the parent polype, though seeming to fill the whole cavity of the 
branch before, as soon as the water became improper for its support, 
shrivelled up immediately so as scarce to he visible .” 
23. Serialaria,* Lamarck. 
Character. Polypidom confervoid , horny , the shoots slen- 
der , filiform, fistular and branched : cells tubulous , uniserial and 
unilateral , disposed in close parallel companies at stated intervals . 
- — Polypes ascidian. 
1. S. lendigera, much branched , the branches spreading , sub- 
dichotomous ; cells in isolated groups , erect, with wide uneven 
apertures . — Doody. 
Vignette, No. 40, page. 249. 
Fucoides lendigerum capillamentis Cuscutse instar implexis, Mad, Syn. 
38. no. 3 Nit Coralline, Ellis, Corail. 27, no. 24, pi. 15, fig. b. B . 
Sertularia lendigera, Lin. Syst. 1311. Pall. Elench. 124. Ellis 
and Soland. Zooph. 52. Turt. Gmel. iv. 682. Berk. Syn. i. 218. 
Stew. Elem. if 445. Wern. Mem. i. 564. Turt. Brit. Faun. 215. 
Bose, Vers, iii. 117. Hogg's Stock. 33. Lister in Phil. Trans, an. 
1834, 384. La Sertolara lendinosa, Cavol. Polip. Mar. 229, tav. 9, 
fig. 1, 2 Serialaria lendigera, Lam. Anim. s. Vert. ii. 130. 2de 
edit. ii. 169. Bisso, L’Europ. Merid. v. 315. Flem. Brit Anim. 547. 
Stark, Elem. ii. 439. Templeton in Mag. Nat. Hist. ix. 467.— — Ama- 
thia lendigera, Lamour. Cor. Flex. 159. Corall. 68 La Serialaire 
lendigere, Blainv . Actinol. 476, pi. 83, fig. 2. 
* From seriala, diminutive formed from series, a row. 
