136 ANNELIDES. ANTENNATJE. 



Gen. 1. EUPHJIOSINE, Lam. 



Proboscis without dentated folds ; one subulate antenna ; bran- 

 chiae divided into seven ramose tufts, situate behind the feet, 

 and extending from one branch to the other ; a supernume- 

 rary cirrus to all the upper branches ; two eyes. 



The branchiae in this genus occupy a large space, and consist of seven branch- 

 ed tufts. There is also but one antenna, the two middle and two exterior being 

 wanting. The head is narrow, thrown back behind, and furnished above by a 

 depressed crest, prolonged to the fourth or fifth segment. The body is oblong or 

 oval, and obtuse at both ends. 



E. laureata, Lam. Body oval-oblong, depressed, reddish violet ; 

 branchiae long, branched, and the apex leafy. Inhabits coasts of 

 the Red Sea. Lam. v. 332. 



E. myrtosa, Lam. Body oblong, deep violet ; branchiae short, slightly 

 branched, foliaceous. Inhabits coasts of Red Sea. Lam. v. 332. 



Gen. 2. PLEIONE, Lam. 



Proboscis with a double projecting palate, and dentated folds ; 

 five biarticulated, subulate antennae, the middle ones ap- 

 proximated and inserted under the odd one ; branchiae ra- 

 mose, subfasciculated, surrounding the superior base of the 

 dorsal branches of the setiferous papillae ; no supernumerary 

 cirri ; four eyes, the two posterior ones indistinct. 



P. telraedra, Lam. (Aphrodita roslrata, Pall.) Body elongated, 

 quadrangular, attenuated behind ; branchiae densely fasciculated. 

 About a foot long. Inhabits Indian seas Lam. v. 330. 



P. carunculata, Lam. (Aphrodita, Pall.) Body depressed-quadran- 

 gular ; pediform fasciculi double, almost equal, divided by carun- 

 culated lamellae. Inhabits Indian seas. Lam. v. 330. 



Gen. 3. CHLOEIA, Lam. 



With five subulate biarticulated antennae ; the middle ones ap- 

 proximated, and inserted under the odd one ; branchiae in 

 the form of tripinnate leaves ; a supernumerary cirrus at the 

 upper branches of the four or five first pairs of feet ; two eyes. 



C. capillata, Lam. (TerebellaJlava,Gmel.) Bristles in long bundles 

 of a brilliant yellow colour ; branchiae purple. Body 4 inches 

 long, narrowed towards the posterior part, and of 42 segments. 

 Inhabits Indian seas. Lam. v. 329. 



SECTION II. 



Branchiae in the form of small crests or laminae, or filamentous 

 and pectinated on one side, sometimes inconspicuous. 



FAMILY II. EUNICE. 



Branchiae, when distinct, at all the pediform papillae, without 

 interruption ; jaws numerous, always more than two, those 

 of the right side in smaller number than on the left ; first 

 pair of feet wanting. 



