478 



ANNELIDA. 



Sub-fam. 1. Hermioninae. Body short, oval; notopodial setae directed 

 upwards and backwards to protect the elytra. Prestomium with median 

 tentacle and two long palps, without lateral tentacles. Peristomium 

 setigerous with long cirri. Elytra on segments 2, 4, 5, 7, 9, etc., up to 23, 

 then on every third segment. Jaws not hardened. Aphrodite L. (Fig. 386), 

 the back and elytra are covered by a feltwork of 

 chitinous threads arising from the notopodium. A. 

 aculeata L., the sea-mouse (Hystrix marina Redi), the 

 strong notopodial setae are iridescent, Atlantic and 

 Med. ; Hermione Blainv. (Laetmonice Kinb.), dorsal 

 feltwork absnt ; Pontogenia Clp. 



Sub-fam. 2. Polynoinae. Elytra as in Hermio- 

 ninae ; two lateral frontal tentacles, with or without 

 facial tubercle ; peristomium with long dorsal and 

 ventral cirri, and the ventral cirri of the next segment 

 elongated. Large teeth on the pharynx. Polynoe Sav. 

 (Fig. 387), with three tentacles, posterior region often 

 without elytra ; P. scolopendrina Sav. ; P. (Harmothoe] 

 areolata Gr., in the tubes of Chaetopterus and Terebella 

 nebulosa ; Iphione Kinb. , two tentacles ; Lepidonotus 

 Leach ; Halosydna Sars ; Lepidasthenia Mgr. ; Lepi- 

 dametria Webs. ; Nychia Mgr. ; Dasylepis Mgr. ; Har- 

 mothoe Kbg. ; Leucia Mgr. ; Lagisca Mgr. ; Hermadiou 

 Kbg. ; Enipo Mgr. ; Melaenis Mgr. ; Bylgia Theel ; 

 Acholoe Clp. ; Malmgrenia Mclnt. ; Eupolynoe Mclnt. ; 

 Polyeunoa Mclnt.; Allmaniella Mclnt. 



Sub-fam. 3. Acoetinae. Long vermiform body. The elytriferous segments 

 alternate regularly with segments bearing dorsal cirri throughout the body. 

 With two pedunculated eyes, without facial tubercle. Three tentacles. 

 AcoetaM.-~Ed\v.; EupompeKinb.; Polyodontes Renier ; Panthalis Kinb. 



FIG. 387. Polynoe setosis- 

 simaSav.(RegneAnhnal). 



FIG. 388. Phyllodoce Paretti Blv. (Regne Animal). 



Sub-fam. 4. Sigalioninae. Long vermiform body. Elytra anteriorly 

 on alternate segments, posteriorly on all the segments with or without 

 gills. Without facial tubercle. Sigalion Aud. and Edw. ; Sthenelais Kinb. ; 

 Psammolyce Kinb . ; Thalenessa Baird ; Leanira Kinb. ; Pholoe Johnst. 



Sub-fam. 5. Polylepinae. Elytra on all segments, no dorsal cirri. 

 Lepidopleurus Clap. ; Pelogenia Schm. 



Fam. 5. Palmyridae. No elytra ; strong setae disposed in a fan-like manner 

 arise from all the parapodia dorsal to the dorsal cirrus. Chrysopetalum Ehl. ; 

 Palmyra Sav. 



