28 



Knudi'i- iiiultagi'ii l.-nigs indre I'ordrc Hand (Tab. 1, Kig. 24). 

 Kuuderue (Tab. I. ¥\g. 25) tillage i Størrelse mod den 

 bagre og ydre Raud. .og mod den bagre Eand findes to 

 storre balvkuglcformigp Knuder,- der ere. sammensatte af et 

 stort Antal Smaaknuder. Tætte og lange Cilier langs ydre 

 Hand, kortere saadainic langs den bagre Rand. Paa 

 disse Skæl tindes ligesom iios P. f/hhifera ved den ydre 

 Rand et Parti, der er hlodere end Resten af Skællet og 

 derfor indsunket under dettes Niveau. 



Fodknnderne med en meget kort dorsal Gren og en 

 temmelig lang venti-al Gren. Ventralcirreu temmelig kort, 

 rækker ei hen til Spidsen af Fodkimden (Tab. I, Fig. 23). 

 De dorsale Porster noget kortere og tykkere end de yen- 

 trale ; Børsterne forresten af den sædvanlige Bygning (Tab. 

 I. Fig. 26), 



Polynoe spinulosa, n. sp. 



Stat. olio. 



Krojjpeu stor. Had. 7 Ctm. lang, 3 Ctm. bred ni,ed 

 Horster, Sli Led. 15 Par Elytrer. der da^kke hele Ryggen. 

 Hovedlappeu lideu. lidt længere end bred (Tab. I, Fig. 6). 

 Tentakelen tynd, omtrent 4 Gange saa lang som Hovedet; 

 Palperne runde, længere end Tentakelen. " besatte med 6 

 Rader smaa Papiller, alene synlige under Mikroskopet. 

 Antennerue halvt saa lange som Tentakelen. Teutakelcir- 

 rerne af samme Længde som Tentakelen. De tynde Til- 

 hæug ligescuu Dorsalcirrerne, der kun række ganske lidt 

 udenfor Børsterne, tæt cilierede. Elytrerne af vanlig Form, 

 tæt besatte med smaa, koniske, haarde Knuder, undtagen 

 langs fordre indre Rand (Tab. I. Fig. 8). Mod den bagre 

 Rand blive Knuderne større og for en stor Del sortfarvede. 

 og ved den bagre Rand findes en Gruppe af 3 meget lange 

 koniske Knuder med kløftede Spidser og mørke (Tab. I. 

 •Fig. 8 og 9). Langs ydre Rand 2 til 3 mindre saadanne 

 og lyse (Fig. 8). Skællene ere langs ydre Rand tæt cilie- 

 rede, og spredte Cilier findes langs bagre Rand. 



Fodknuderne (Tab. I, Fig. 7) korte og tykke; den 

 ventrale Gren tvert afskaaren og længere end den dorsale. 

 De dorsale Børster noget kortere end de ventrale, der 

 nedenfor den glatte, enkle, let- krummede Spids ere meget 



form. everywhere studded, save along the inner anterior 

 margin (PI. I, fig. 24). with minute hard nodules. The 

 nodules (PI. I, fig. 25) increase in magnitude towards the 

 posterior and outer margins; and at the posterior margin 

 occur two comparatively large semi-globular protuberances, 

 composed of numerous smaller ones. Long and closely set 

 cilia on the outer margin: shorter cilia disposed along the 

 whole of the posterior margin. (.)n the scales, occui-s at 

 the outer margin, as in P. glohifera. a section softer than 

 the remaining part of the scale, and therefore sunk below 

 the level of the surrounding surface. 



The pedal protuberances with an exceedingly short 

 dorsal and a. comparatively long ventral branch. The ven- 

 tral cirrus, comparatively short, does not reach to the ex- 

 tremity of the pedal protuberance (PI. I. fig. 23). The 

 dorsal bristles a trifle shorter and thicker than the ven- 

 tral: both of tlie usual structure (PI. I. fig. 26). 



Polynoe spinulosa. n 



Stat. oOo. 



sp. 



■ V 



\^ 



Body large, fiat. 7"" long, 3'"' broad, witli bristles; 

 36 segments, and 15 pairs of elytne covering the whole of 

 the back. The lobe of the head small, a trifle longer than 

 broad (PL I, fig. 6); the tentacle slender, its length com- 

 pared totbe length of the head as 4 to 1 ; the palps round, 

 longer than the tentacles, and furnished with 6 rows' of 

 minute papillæ. invisible to the naked eye. The antennæ 

 half the length of tlie tentacle; the tentacular cirri of the same 

 length as the tentacle. The slender appendages, as also 

 the dorsal cirri, reaching but a very little beyond the points 

 T)f the bristles, densely ciliate,d. The elytræ normal in 

 form, thickly covered, except along the anterior inner mar- 

 gin, with- small, hard, conical nodules (PI. I. fig. -8). To- 

 wards the posterior margin, the nodules. . mostly black, 

 iuci'ease in magnitude, and on the posterior margin is 

 seen a group of 3 exceedingly long, dark-coloured coni- 

 cal protuberances, cleft at the points (PL -'L figs. 8. 9).. 

 Along the outer margin, occur 2 or 3 light-coloured smaller 

 ones (fig. 8). The scales densely ciliated on the outer mar- 

 gin; the' posterior margin likewise furnished with cilia, but 

 sparingly. 



The pedal protuberances short and thick (PL I, tig. 7), 

 the ventral branch truncate, and longer than the dorsal. 

 The dorsal bristh'S somewhat shorter than the ventral. . 

 which, below the smooth. sim])le. slightly arcuate points, are 



