WORMS. MOLLUSCA. 49. Medufa, 123 
Barbut. tab. 9. fig. 3- It. Wgotb, tad. 3. f. 3. 
Baffer opuf. [ubj. 2. p. 60. tab,.5. Ag. 1. 
Inhabits the Oceaz *. about 8 inches in diameter. 
Body whitifh femipellucid fragile; above convex, beneath flat 
with a rough circle, within which are 8 pair of rays; and à 
number of curled fibres and appendages from the centre: 
' the margin divided into 8 portions, each of which is emar- 
ginate. ài 
*Pja; Disk capitate, with 8 foramina or holes on the border: 
beneath arched and hairy. dii 
Inhabits the Sea" Bardat?s Warms. tab. 9. fig. 4. 
Body with an irregular reflected margin. 
Marfapialis Serhioval with 4 tentacula on the margin. 
Barbut. tab. 9. fig. §. Plane. Coneh. rar t. 4. f. %. 
Inhabits the Mediterranean; refembles a purfe. 
+P 
Hemifphes Hemifpherical with 4 tranfverle ribs beneath, and mar- 
rica. ginal tentacula and globules: the margin entire. 
Mull. Zocl. Dan. 1. p. 22. n. 5 tab. 7. fig. 1--5. 
Gronov. ad. Helv. 4. p. 38. tab. 4 fig. 7. 
Inhabits European Seas: about 2 lines in diameter. 
Pslagika. Hemifphxrical-concave with a crenate incurved margin and 
$ tentacula. ala 
Inhabits the American and Atlantic Seas. » Lefil. It. 165. 
Noailuea, Depreffed, with reddifh-brown warts and dots: margin 
with § red tentacula. 
Forfc. fu. /Egspt. Arab. p. 109. tab. 24. 
Inhabits the Atlantic and Mediterranean Seas, where they wander 
in large groupes, illuminating the waters, and if fhaken in 
fea water emit {parks of light: thefe 2 lait are probably only 
varieties. 
à Fufat Body with 16 brown rays and a brown circle in the middle; 
the circumference edged with alternate crooked tangs 
\ and oval tubercles. 
Borlafe Cornwall. p. 256. tab. 25. fig, 7. 8. 
Barbut's Worms. 80. tab. 9. fig. 7- = 
Inhabits the Coaft of Corawall, ‘Tentacula 4, lacerated, a little 
exceeding rhe body, . 
* Purpura, Body with pale purple rays; and a light purple crofs in the 
| centre, between each bar of which isa deep purple 
horfe- fhoe-fhaped mark. ; | 
Q 2 ; |o Inhabit 
