WORMS. MOLLUSGA. 31. Afcidia. 93 



Rapillofa. Body rough, and covered with fcarlet tubercles. 



Inhabits the Adratic. Barbufs Worms, tab. $*Jig* I* 

 Boadfch. Mar. 13Q. tab. 10. fig, I. 



Celatinofa. Body fmooth, fcarlet, and fubdiaphanous. 



Inhabits the Mediterranean. Broadfch, Mar. tab. 10. fig. 3. 



• I tejlinq Body elongated, fmooth, whitifh, membranaceous, like trup 

 IS ' inteftines of a quadruped. 



Inhabits European Seas. Barbufs Worms, tab. $-fg- *. 



Bailer op.j'ubf l % p. 84- tab. lO- fig. 5, 



Boadfch, mar. 132. tab. 10. fig. 4. 



Ounner Aft. nidres. 3. p. 81. tab. 3 .fig. 3, 4. 



J?0^ round, long, and tapering towards the bafe : one of the 

 apertures placed at the fummit, the other a little below it and 

 lateral : under the membrane is another canal, reaching nearly 

 to the bafe, and bending back up to the lower aperture, 



Ouadriden- Smooth, whitifh: the apertures 4rtoothed. 

 tata f inhabits North Seas. Mull. Zool. Dan. prodr. £721. 



Body fubglobular, 4 lines long, with 2 prominent beaks. 



* Rujika* Oblong, brownifh with flefh-colour apertures : the extrc^ 



mities rough, the middle fmooth. 



Brit. Zool \v. tab. 23. fig. 35. Barbut. tab. $.fig 9 ±, 

 Mu ] l. Zool. Dan. \- p. 49. tab. l$*fig. I— 5. 

 ffohnft. exang tab. \g. jig. 8. 

 Inhabits European Seat ; about 2 inches long. 

 Body flat beneath, one end turning up. 



phinata. Body hasmifphxrical, hifpid, with fcarlet gaping mouths. 

 Inhabits North Seas, Mull. Zool. Dan. prodr. 2J2 2. 

 Boay whjtifh, covered with warts each of which is armed at the _ 



tip with divergent fubciliate prickles like the Ca&us, the-? 



upper ones larger Hem-colour a,n4 ending in apertures. 



Mentula. Body compreffed, h^iry, with a red pouch: one, of the 

 apertures lateral. 

 Mull. Zool. Dan. 1. p. 24. n. 6. tab. %.fig 1—4. 

 planch. Conch, p. 109. tub. 7. Johnfi. exang. tab. 20. fig. 2» 

 Gefn.fi/ch. p. l^.fig. I. llill Anim. 1. tab 5. 

 JoumPhyf. 1777, Mai. p. 356. tab. 2. fig. 1—3. 

 Inhabits the Northern Ocean : 5, 6 inches long. 

 Body like an unformed mafs and covered with the fibrils of 

 Conferva?, ochre-yeMojv, pelliicid and gelatinous. 



- Venofa. 



