Tubularia. 
Z. HYDROIDA. 
115 
Tub. gracilis any essential specific character : the differences he points 
out between it and T. indivisa seem to depend on the peculiar locali- 
ty of the former, viz. on chains or wood exposed to a rapid current. 
2. T. Larynx, tubes clustered , slender , cylindrical , ringed at 
regular intervals : polypes with a double series of tentacula . 
Plate III. Fig-. 3, and Plate IV. Fig. 3-5. 
Var. a. The tubes simple or undivided. Plate III. Fig. 3. Fucus Dealensis 
fistulosus, laryngae similis, Rail, Syn. i. 39, no. 8. Petiv. Oper. iii. 39, 
no. 406. Ellis in Phil. Trans, abridg. x. 453, pi. 10, fig. c, and xi. pi. 
5, fig. 3, young. — — Tubulous Coralline wrinkled like the windpipe, El- 
lis, Corall. 30, no. 1. tab. 16, fig. 6. Corallina tubularia laryngi similis, 
Bast. Opusc. Subs. 41, tab. 2, fig. 3-4 ; and tab. 3, fig. 2-4 Tubu- 
laria muscoides, Pall. Elench. 82. Berk. Syn. i. 214. Turt. Gmel. iv. 667. 
Turt. Brit. Faun. 210. Stew. Elem. ii. 438. Bose, Vers, iii. 90. Flem. Brit. 
Anim. 552. Tub. Larynx, Soland. Zooph. 31. Lam. Anim. s. Vert. 
ii. 110. Hogg's Stock. 34 — La Tub. musco’ide, Blainv. Actinolog. 470. 
Var. b. The tubes sparingly and irregularly branched. Plate IV. Fig. 3, 
4, 5, and Plate V. fig. 3, 4. Tubularia muscoides ? Lin. Syst. 1302. 
Corall. 101. Fistularia muscoides ? Mull. Zool. Dan. prod. 254, no. 
3068. — Fistulana muscoides ? Fabric . Faun. Groenl. 442. 
Hob. On shells, corallines, &c. beyond low-water mark, (a.) 
u Found about Deal by the Reverend Mr Hugh Jones * and Mr 
James Cuninghame f ” Petiver. “ Found in great plenty in the 
sea, near the opening of the Thames, adhering to other marine bodies, 
and often to the bottoms of ships,” Ellis. Stockton-on-Tees, J. Hogg , 
Esq. Scarborough, Mr Eean. — (5.) Berwick Bay, parasitical on Tu- 
bularia indivisa and ramea. 
Polype-tubes, in var. a , clustered, about 2 inches in height, un- 
divided and filiform, more or less entwined at the base, of a thin pel- 
lucid pale corneous texture, wrinkled and annul ated at intervals, whence 
* “ A very curious person in all parts of Natural History, particularly in Fos- 
sils, some of which he hath sent me from Maryland, with several volumes of 
Plants very finely preserved ; with divers Insects and Shells. From this oblig- 
ing gentleman, I am promised frequent remittances of whatever those parts af- 
ford, as well Animals and Fossils as Vegetables.” — Petiver. 
f Cuninghame was a Surgeon, probably in the East India Company’s service, 
and had visited those places which lie in the course of its trade, whence he 
brought numerous plants, &c. to enrich the museum of Petiver. The latter styles 
him “ that industrious promoter of Natural Philosophy, and my very ingenious 
friend — “ my very worthy friend — “ my hearty friend and the 20th plate 
of Petiver’s English Plants is gratefully dedicated to the memory of this “ his 
curious friend,” to whom he says he was “ beyond expression obliged.” 
Cuninghame is the author of a paper on the plants of the island of Ascension 
in Phil. Trans, no. 255 ; and seems to have deserved the praises which his con- 
temporaries bestowed. 
