39-1 



ANiNELlDES. 



P/cioiir, ?;iv. (Aiiiji/i/iiomcy V>]^\n\'.)., ^^■^^']t:h, witli the eaine tentncles, ha\T crest-lil;e gills, Tln'^c also are from 



the liast Indies, and attain a j::;reat size. 



To tliese may be added Rnptirnainr, S;iv., wliicli lias but one 

 tenrarlc Tn tlic head, to-fflier \^ifIl arlm.srular ii:\]\s, ver\ 

 ijiiicli di!\Tiij|ieii ami coiniilicated ; and to w hid) the ^^enns 

 Aiu.sferia, 'Saw, established on a niiitdated individual, sliuuld 

 linihalily he approximated ; and, lastly, 



JJ ipponoe, Aiviou'm & Edwards, A\hieli, ili'\uid of canincle, 

 lias only one cirrlius and packet of Ijristles to eacli foot. 'I'here 

 is uiic at fort Jacksun, JI. GaudichaudiL Aud. & Ld. 





Eunice, Cut. — 



FK.-t. Lu,Jr3sii^ c j^ likewise fnrni-,lied with tuft-like gills, but the trunk 



is forriiidably aruied with three pairs of diftlTfiitly-funneil huriiy jaws; each of their feet has two 

 cirrhi and a bundle of bristles ; and there are five tentacles upon the head above the mouth and two 

 on the neck. Some species only exliibit two small eyes. M. Savigny's family oi Eunices is constituted 

 by this division, and the particular genus is termed by him LcoiUcc. 



A spt-cics, from une to four feet in lenj^^th, inhabits the sea 'iniimd tljf Antilles (B. gigonica, Cuv.), which is the 

 larg;est Annclide known. Some upon our coasts are much snjallei'. 



IM. Savig-ny distinguishes by the name of il/ar^/^fi/fT certain species, otherwise ^'ery similar, wdneh have no 

 nuchal tentacles, and the upper cirrhus of which is very short, as Xcre/.-; sang/dnea, I\]nntaL,'-u. An allied species 

 (i\\ tubicola, .Muller), inhabits a horny tube. 



After these genera witli coin]ilex branchire, are placed tliose in which the organs advertcil to are 

 reduced to siin[)le lamiiuc, or even to slight tubercles, or which, lastly, arc represented (udy by the 

 cirrhi. Some of them resemble Eunice by the powerful armature of the trunk, and by their anteonte 

 of une'pial number. Such are 



LvciorcE, Sav., — 



Which, together with the jaws of Eunice, or even a greater number than in that genus, and often un- 

 Cijiial on the two sides, have but three tentacles, and cirrhi to perform the office of branchix. 



Aglaura, Sav. — 

 Have likewise numerous jaws, of an unequal number, seven, nine, .^c. ; but no tentacles, or which are 

 culirely hiddm ; and the gills are similarly reduced to cirrhi. 



L'n 

 M.M. 



AluImiiu 



or 1 iiinte \.\\e, Aglaiira and CEnr;»e of Savi:;n>', and c\'en certain species without tentacles, which 

 id I'dwards leave in Lf/cidice, as J'j. fNf;iii/n and (E, lutida. 



The Nereids, properly so called (Kcrc/s, Cuv. ; Li/coris, Sav.). 

 Tentacles of an even number, attached to the sides of the base of tlie head, two other hiarticulated 

 ones a liitle more forward, and between these two simple ones ; only one jiair of jaws wilhiu the 

 trunk ; the gills formed of little lamintc, tra\ersed by a network of vessels ; and at each of their feet 

 two tubercles, two bundles of bristles, and a cirrhus aliovc aud brh.w. 



A great number of species inhabit our coasts. 



[The species here figured, iV. ^^ro/ //era (.Mai- 

 ler, ZooL Dan.), exhibits a singular peculiarity 

 in its nioile of propagation, merely by .sponta- 

 neous division, the hind part of the body beini:; 

 gradiudly transtbrrned into an additional animal, 

 the head and tentacular cirrhi lieinj^ already de- 

 veloped. Muller describes one mother, to which 

 three foetuses, of different ages, appeared in one 

 length. The motlier had thirty segments, the 

 viiiin'.: One iK-arrst tn it had eleven, and the two 



, -, T'n- 2(U,- Norcis rir.ilifrrii, 



iiinder, (T ulder ones, seventeen segments each. J 



After these sbuuhl rank various genera, equally distinguished by a slender IiimIv, and gills reduced to 

 simple lamiu:c, or even to simjile filaments or tubercles. Several, hnwi.'vcr, have u(t jaws nor tentacles. 



PuYLLODOCE, Sav. {NcreijiInjUn, l'daiuv.\ — 

 In common with the Nereids proper, have tentacles of even uunilier at the sides of the head, and four 

 or five small ones anteriorly. They have distinct eyes; their large trunk is furnished w ith a circh?t 

 of very fshort lleshy tubercles, does not cuntaiii jaws, aud, wliat ])arlicularly di^liuLMli^lles thcni, 1heir 



