138 ANNELIDES. 



on the top of each foot, and has another l)encath, \yith a bundle of 

 setae ; a large proboscis with neither tentacula nor jaws. 

 Several species arc found in the Mediterranean *. 



Ophelina, Sav. 



The body thick and short, with feebly marked rings and scarcely 

 visible setae; long cirri in lieu of branchiae on two thirds of its length; 

 palate of the mouth with a dentated crest ; the lips surrounded with 

 tentacula, of which the two superior are the largest f. 



CiRRHATULUSj LcWl. 



The branchiae consisting of a very long filament; two small bundles 

 of setae to each of the articulations of the body, which are numerous 

 and compact : a series of long filaments round the nape. The slightly 

 marked head has neither tentacula nor jaws|. 



Palmyra, Sav. 



The Palmyrsc are recognized by their superior fasciculi, the setae of 

 which are large, flattened, flabelliform, and glisten like highly po- 

 lished gold ; tlicir inferior fasiculi are small ; their cirri and bran- 

 chiae feebly marked. They have an elongated body, two extended 

 tentacula, and three very small ones. 



Palm, aurifera, Sav. The only species known ; it is from 

 one to two inches in length, and is found at the Isle of France. 



Aphrodita, Lin. 



This genus is easily known by the two longitudinal ranges of broad 

 membranous scales that cover the back, to which, through a very 

 groundless assimilation, the name of elytra has been given, and 

 under which, their branchiae, in the form of fleshy crests, are con- 

 cealed. 



Their body is usually flattened, and shorter and broader than in 

 the other Annelides. Their extremely thick and muscular esopha- 

 gus is susceptible of being protruded like a proboscis; their intestine 

 is unequal, and furnished on each side with numerous branched 

 caeca, the extremities of which are fixed between the bases of the 

 setaceous fasiculi, which serve as feet. M. Savigny distinguishes 

 from them the 



* Hesione splendiJu, Sav., Eg., Annel., pi. iii,f. 3 ; — H, /estiva, Id, lb., p. 41 ; — 

 H.panthcrina, Risso, Eur. Merid., IV, p. 418. 



t This is probably the place for the Nereis prismutica, and bifrons, Fabr., See. 

 Hist. Nat. Copen. V, part 1, pi. iv, p. 17 — 2.J. 



+ Lwnbrictis cirrhatus, Ott., Fabr., Fauu. Groenl., f. 5, from which the Tere- 

 bella tentaculafu, Montag., Lin. Trans., IX, and the Cirrhinere filigere, Blainv., 

 pi., of the Diet, des Sc. Nat., N, do not appear to differ as to the genus ; — Cirrh. 

 Latnarkii, Aud., and Edw., Litt., de la Fr., Annel., pi. vii, f. 1- — 4. 



