30 



tralcirren naar ikke hen til Spidsen af den ventrale Gren. 

 De dorsale Børster kortere og tykkere end de ventrale; 

 hine tint og tæt tvertandede (Tab. III. Fig. 11. a); de 

 ventrale med en lang sylformig Spids. og forst temmelig 

 langt nedenfor Spidsen begynde Takkerne. der ere temme- 

 lig lange og faa (Fig. 11. b. r). 



Nemidia Torelli (?), Mgrn. 

 Stat. 374. 



Det er kun med Usikkerhed. at jeg henfører 2 Brud- 

 stykker af en Polynoe til denne af Malmgren opstillede 

 Form. 



Det ene Exemplar var 2 Otm. langt og 0.8 Ctm. 

 bredt med Børster, havde 20 Segmenter og 2 Elytrer. 1 

 af Iste og 1 af 2det Par paa den ene Side. Hovedlappen 

 noget længere end bred. ender i to spidst uddragne Pro- 

 minentser (Tab. III. Fig. 12) uden tydelige Øine. Ten- 

 takelen tynd. omtrent 3 Gange saa lang som Hovedet. 

 Palperne glatte, middels tykke, noget længere end Tenta- 

 kelen; Tentakelcirrerne glatte, af Tentakelens Længde. 

 Antennerne ere meget korte. 1 / 4 af Hovedets Længde. 

 Elvtrerne glatte uden Spor af haarde Knuder eller Cilier. 

 Dorsalcirrerne ra-kke til Spidsen af Børsterne, glatte. Fod- 

 knuderne delte i to meget spidse Grene (Tab. III. Fig. 13); 

 de dorsale Børster faa i Anta] og meget kortere end de 

 ventrale. Begge Sorter yderst tynde og med sylformige 

 Spidser (Tab. III. Fig. 14. a Dorsal, b Ventral). 



Det andet Exemplar havde ogsaa 20 Segmenter, men 

 er 3 Ctm. langt og 1.5 Ctm. bredt med Børster. Iste 

 Par Skæl sidder fast og der medfølger flere affaldne Ely- 

 trer. Børsterne ere meget tykkere end hos hine. især de 

 dorsale, der som vanligt have en afrundet Spids. men ud- 

 mærke sig ved sin yderst line Tvertanding ligesom hos det 

 andet Exemplar. De ventrale Børster af aldeles samme 

 Bygning som hos det andet Exemplar med en lang sylfor- 

 mig Spids (Tali. III. Fig. 15). Ørnene ere hos dette Exem- 

 plar lidt mere fremtrædeude end hos det andet. Elytrerne 

 ere farveløse. enkelte af de større med nogle brunlige Flek- 

 ker og langs ydre Rand samt paa den ydre Del af Fladen 

 med et ringe Antal yderst korte Cilier. 



cirrus not reaching to the extremity of the ventral branch. 

 The dorsal bristles shorter and thicker than the~ventral ; 

 the former minutely 'transverse-serrate (PI. III. tig. 11. a); 

 in the latter, the spikes, few in number and comparatively 

 long (fig. 3. 6, r). commence some distance below the long, 

 styliform point. 



Nemidia Torelli (?), Mgrn. 



Stat. 374. 



It is with considerable hesitation that I refer two 

 fragments of a Polynoe to this form, established by Malm- 

 gren. 



One of the mutilated specimens, measuring 2"" in 

 length and 0.8 '"' in breadth, including the bristles, was 

 furnished with 2< I segments and 2 elytræ on either side. 1 

 belonging to the 1st and 1 to the 2nd pair. The 

 lobe ' of the head, somewhat longer than broad, ter- 

 minating in 2 acuminate prominences (PL III. fig. 12); 

 eyes not distinctly obvious. Tentacle slender, about thrice 

 the length of the head. The palps smooth and moderately 

 thick, somewhat longer than the tentacle: the tentacular 

 cirri, of the same length as the tentacle, smooth. The 

 antennæ exceedingly short, their length being to the length 

 of the head as 1 to 4. The elytra' smooth, without a trace 

 of hard knotty protuberances, or of cilia. The dorsal cirri, 

 reaching to the points of the bristles, smooth. The pedal 

 protuberances bearing two exceedingly acuminate branches 

 (PI. III. fig. 13); the dorsal bristles much shorter than 

 the ventral, and few in number; both exceedingly slender, 

 and with styliform points (PI. Ill, fig. 14; a dorsal. 6 

 ventral). 



The other specimen, too. had 20 segments, but did 

 not measure more than 3"" in length and 1.5™ in breadth, 

 with the bristles. The first pair of scales was still in situ, 

 and there were several detached elytræ. The bristles much 

 thicker than in the first specimen, particularly the dorsal, 

 which have, as usual, a rounded point, but are distinguish- 

 ed, like those in the first specimen, by their exceedingly 

 minute transverse serration. The ventral bristles, of. pre- 

 cisely the same structure as those in the first specimen, 

 have a long styliform point (PI. Ill, fig. 15). The eyes 

 in this example a trifle more conspicuous than in the other. 

 The elytræ are mostly colourless; some of the larger ones, 

 however, exhibit a few brownish spots : and along the outer 

 margin, as also over the outer portion of the surface, occur 

 a limited number of exceedingly short cilia. 



