268 Soiitlicni C 'ross. 



Gattvana. 



Ml liitoli. W. t. ' Biitisli Aiiiit'lkls,' I'art II., ' rolychaeta. Ainiihiiioinidac to 



yi^alitMiiilae.' Jini/ Soc. Man' ;/rup/i, 11*00, p. 285. 

 Syii. yyi/iia, Maliii<;reii, iire-occmueil. 



Sotae .•<uj'eriores (lebiles, ]>leiumque tenuities iiuain setae veutrales ; setae veutrales 

 apu'c integro ; elytra scalmuscula, dorsum tegciitia ; palpi jajiillis luiuutis 

 rlavatis truiioatis ol'siti. 



3. Gattyana CRISTATA. 



(I'l. XLTV., figs. 1-4.) 



Tars iiU'<lia dorsalis seguientonini oinniuin crista transversa jiraedita : setae 

 superiore.s tenerae asperae iuterduni apice peuicillato; elytra perfiiubriata, 

 tuberculis crenatis nuiuita. 



Three specimens of this interesting species, the first re[)reseuta- 

 tive of the genus to be recorded from Antarctic waters, were dredged 

 olf Franklin Island in 10 to 20 fathoms. 



Length of largest specimen 24 mm. ; M'idth from below, including 

 parapodia, but not including setae, 8 mm. ; number of segments, 

 ihirty-five. 



Characteristic for the species are (1) the cristate dorsum of each 

 segment ; the first crest on the first elytra-bearing segment is rotund, 

 the rest becoming more drawn out transversely imtil the maximum 

 is reached. 



(2) The creuate tubercles of the sub-orbicular elytra. These 

 tuljercles are of large size and comparatively few in number in 

 the posterior half of the elytron, graduating in size from the more 

 numerous smaller veiTucae of the anterior half. The elytra also 

 carry numerous long filiform fimbriae, both marginal (external and 

 posterior) and extra-marginal. 



(3) The tufted tips of the larger dorsal setae. The tip of the 

 setae is produced into a slender fiagellum surrounded by a tuft of 

 fine long setulae ; often the flagelluni is absent, either lost or 

 undeveloped, and then the setae terminate in a brush. These setae 

 resemble the peuicillate setae of Panthalis oerstcdi} 



The most dorsally placed setae are feeble and flexible. 



Malmgrenia. 

 MdutoBli, 1876, char, emend. 

 Mcintosh, W. C, IBTC. Tr. Zool. Soc, London, IX., p. 370. Id., litOO, Ray Soc. 



Mon., p. 37'J. 

 I'rosttiiiiiiim lyrifornie; processus omnes corporis (viz., palpi, tentaculum, antennae, 



cirri, elytra) glabri vel subglabri ; setae ventrales distincte vel obsolete 



I'idoiitatae. 



' V/. Mcintosh, tq,. cif., I'lOO, p. 103, and PI. Xl,!., fig. HI. 



