ii6 



WORMS. MOLLUSCA. 49. Medufe. 



Carave/la. Body ovate, with very long central tentacula beneath, anc 



a crenulate veil above. 

 Mull. Befck. Naturf 2. p. I 50. tab. g, Jig. 2. 

 Sloan jfamaic. I. p. 7. tab* 4, $. 



Inhabits the Atlantic, and inflames the hand by its touch. 

 Body thin, fmooth, ihining, blueifh, hyaline, and tapering each 



iide : creji or veil running the whole length of the back, femi- 



lunar, compreiled, furrowed wiih branched grooves, and mark. 



with rofy veins : tentacula jointed, blue, fragile, and inter.: 



mixed with fnorter tubercles, 



Vmbella. Tentacula of the dtflc naked, of the margin glandular: 

 margin membranaceous, crcnate. 



Mull. Bcfh.Naturf 2, tab. 295. tab. 9*fg. 2, 3. 



Inhabits the Mediterranean and Indian teas, 



Body rigid, deprefled, with radiate grooves above; beneath with 

 a chvate trunk in the nvddle, iurrdbndcd with fliort clavate 

 tubes: tentacula jointed, with 3 rows of glands. 



jfrimorpba* Back eminent : beneath a minute crofs furrounded withe 

 apertures : margin ciliate. 



0. Fabr.fn.Grcenl. p. 365. n. 359. 



Inhabits North Seas ; lels rhan M. requorea* 



Body when expanded orbicular, with a fquare inflected margin; 

 beneath concave : back divided into 4 parts by radiate groove?, 

 with an elevated central crofs and white fibres. 



Cainpanu- Difk gibbous; the border wide and ciliate : beneath a hairy 

 la. crofs. 



Inhabits Greenland Sea, • O. Fabr.fn. Grcvnl. p. 366. n. 360. 

 Body conic-orbicular, beneath hollow and inowy : fringe of the 

 margin and crofs yellow, the latter often white. 



tiigitata. Hyaline, with a pidil beneath in the centre ; margift 

 ciliate. 



O. Fabr.fn. Graznl. p. 366, n. 36 1 f 



Inhabits the Greenland Seas, and leaps with its margin bent in. i 

 Body very minute, conic, ftriate : fringe yellow or white, and 

 hooked within : pifiil ending in a yellow or white pencil. 



Frondo^Xt Margin of the difk varied with white opake fpots and dots.: 

 tentacula 8, dichotomous, befet with white pedunculate 



warts terminating in tufts. 

 Fall. Spia'l. ZocL 10. p. 29. tab. 2,fg. I — 3. 

 Inhabits the Archtepelago % fmall. 





Body 



