280 Polychaeta. — Rapacia. 



ni 3. Eusyllis assimilis Mrzllr. Corinis mm loiig:. , 0.7 mm lat.. caput 

 versus vix, jjosteriora versus subito attenuatum, se^meiitis 45, aurantiaoum, antennae 

 et ciiTi tentaculares (iion dorsales) apicem versus lubescentes ; lobus cephalicus 

 rotunflatus pentagonus, latior quam longior, margine anteriore prominente, oculis 

 4 rubris; palpi lobo cephalico breviores, late rotundati. basi leviter connati; an- 

 tenna media lateralibus duplo longior ; cirri dorsales basi leviter constricta, ciri-i 

 ventrales foliacei lati. (Laxgkkhans hanc speciem cum praecedeute forsan con- 

 jungendam putat.) 



Habit. : Adria: Lussin piccolo (v. Marenzeller). 



D) Pharvnx antice denticulatus, dens dorsalis nullus. 



Odontosyllis Clpde. PaJpi valde prominentes, sejuncti: pharynx semicircnlo 

 ventrali denticnlornm instrnctns; antennae tres, cirrornm tentacnlarinm paria dnOy 

 cirri dorsales Jdiformes, cirri centraJes pinniformes: rajio oeriijitalis (/ibbositate cdiata. 

 mnnifa. 



1. 0. gibba Cli-de. (S//Uis brericomis Gr.. 0. brevicornis v. Mrzllr.). Corpus 

 longit. 25 — G5 mm, segmentis 30 — 42, lobus ceplialicus, segmenta anteriora et 

 cirri dorsales notis albidis insignia; pars dorsalis segmenti primi setigeri gibbose 

 prominens; appendices omnes breves acuminatae; antennae longitudine lobi cephalici^ 

 non articulatae, impar cretacea, pares hyalinae. 



Distrib.: Litora occidentalia Francogalliae; Madeira. 

 H a b 1 1. : Marseille (Marion et Bobretzky) ; Adria : Crivizza (Grube), Lussii» 

 piccolo (v. ^^Iarkxzeller). 



2. 0. fulgurans Clpde. {?Sj/llis fnJgnrans Aud. et Edw.). Longit. 2 7 mm,. 

 segmentis (JG, aurantiaca, jjunctis lateralibus viride phospliorpscentibus , lolius 

 ceplialicus sulco Y-formi signatus, antennae margini anteriori aftixae; palpi ad 

 instar forcipis curvati; antennae cirrique non moniliformes; pharyngis margo deii- 

 ticulis 7 instructus. 



D i s t r i b. : Athmticum, Madeira. 



Habit.: INirt Wndres (ClaparSde) ; Marseille (Mariox et Bobretzky). 



3. 0. Dugesiana Clpde. Longit. 2!) mm, segmentis 05, sine coh)re;; 

 lobus cephalicus quadratus, antennis duabus margini anteriori, tertia impari margini 

 posteriori approximatis ; palpi quasi recti ; gibbositas occipitalis magna ; antennae 

 cirrique laeves; pharyngis margo denticulis 5 medianis, arcuatis, utrinque binis 

 lamellosis instructus. 



D i s t r i b. : Athmticum, Madeira. 

 Habit. : Port Vendres (CLAPARftDE). 



4. 0. ctenostoma Clpde. (0. virescens v. Mrzllr.). Longit. 18 mni, seg- 

 meiitis 31 — 36 — i>8, pallida; oculis 4; segmentum buccale a dorso non conspicuum; 

 palpi comphuiati, basi hitissima, apice anguhito ; antennae cirrifjue onnies hieves, 

 liaud mdiiiliformes ; j)roboscis cainosa brevis, tubo chitinoso interno ovato-cylindraceOy 

 antict' dilatato ; aperturae proboscidis margo semiorliicuhiris arcuatus, dentibus 

 validis (j pectinatus; setae articulo brevi tenninali unidentato; aciculae plures 

 capitatae. 



D i s t r i b. : Atlanticum, Madeira. 



Habit. : Jlarscille (Mahiox et Bubretzky) ; Napoli (CLAPABftDE); Adria: 

 Zaole (v. M.\iM:.\zi:i.i.i:ii). 



Trypanosyllis Clpde. I\dpi raldc prominenies. sejnncti ; j)har//nx cireid» 

 denticnlornm ad instar trcpani instructus, rcctns; antennae et cirri dorsales niondi- 

 fornn':^, eirri renfraJrs /liiiniformes. 



m 1. Tr. zebra v. Mrzllr. {SijUis zcbra Gh., Tr. Krohnii Cli-de.). Longit. 



