WORMS. MOLLUSCA. 49. Medufa.: T 
with numerous exfertilé papille : erri; flender, fhort, impli- 
cate or entangled together. 
turicula. Refembling a flask: neck round, the lower extremities 
dilated and furrounded with 8 fafciculi of tentacula. 
O. Fabr. fa, Granl. p. 341. n. 332. 
Found in the Greenland Seas, adhering very firmly to the largeft 
Ulvz, from which it rearely moves: feeds on Onifci, and is 
about 1 2 inch long. | 
Body black or reddifh; rarely chefnut-brown with a gold tinge, 
lubricous, glabrous, the margin furrounded with 8 granulate 
tubercles refembling fo many faíciculi of tentácula about 6d 
in each and which are black tipt with white: mouth white. 
49: MEDUSA. Body gelatinous, orbicular; 
dnd generally flat underneath: mouth, 
central, beneath. 
The animals of this genus ¢onfift of a tendet gelatinous mafs of 
different figure, furnifhed with arms or tentacular procefs 
proceeding from the lower furface: the larger fpecies when 
touched caufe a flight tingling and rednefs, and are ufually 
denominated Sea-nettles: they are fuppofed to conftitute the 
chief food of cetaceous fifh; and moft of them fhine with 
great {plendor in the water, 
A. Body with ciliate ribs. 
itifundisu» Body ovate with about 9 ciliate ribs. 
lum. ‘Shaw Natur. Miycell. tab. 112. Mart. Spitz. €. p. f. hi 
Brown Jamaica. p. 384. tab. 48. fig. 2. 
Bafler op. fubf. 3. p. X23. tab. 14. fig. 5s ) 
Inhabits Indiar, Mediterranean and North Seas: 5 % inches long. 
Body obtufely 8-angled, hollow, tran{parent, open at the larger 
extremity and of a firm gelatinous fubitance. It contratts and 
expands with great facility: ri/; purplifh and furnifhed with 
a fingle row of fhort flender fibres. 
Pileus. Body globular with 8 ciliate ribs and 2 ciliate cirri. 
Bafler op. jubf 3. p. 126. tab. 14. fig. 6,7. 
Martin. Spitsb. tab. p. fig. g. 
Inhabits the Mediterranean and Northern Seas. — 
Cucumis; Oblong with 8 ciliate ribs, without ene 
O. Fabr. fa, Granh p. 361. 2. 3536 | i 
| VOL, IV.—g * dphabite 
