SYSTEMATIC ACCOUNT 205 



compound chaetae between them. The following segments bear parapodia with characteristic folia- 

 ceous dorsal and lanceolate ventral cirri. In the larger specimens the dorsal cirri contain genital 

 products. All chaetae are heterogomph spingers with straight smooth terminal pieces. Anal appen- 

 dages are very small circular cirri. 



General distribution. The few records indicate a wide distribution in the S. Atlantic (see p. 242). 



Phalocrophorus pictus Greeff, 1879 

 This phyllodocid belongs to the subfamily Iospilinae. One specimen was reported by Hardy and 

 Gunther (1935) from St. WS 63 on the December to January 1926-7, South Georgia Survey. Ehlers 

 (1913) previously recorded it from the Indian Ocean sector of the Antarctic Zone; Augener (1929) 

 reported it from the Weddell Sea and Fauvel (1936a) records it from the ' Belgica' collections in the 

 Pacific Antarctic sector. North of the Sub-Tropical Convergence in the South Atlantic Ocean 

 P. pictus was reported by Reibisch (1895), Friedrich (1950c) and Stop-Bowitz (1951). This species 

 has not been found in the present surveys and is known from too few records to permit an adequate 

 analysis of its distribution. 



Family APHRODITIDAE 

 Not exclusively pelagic. Prostomium normally with four sessile or pedunculate eyes, one to three 

 antennae and two palps. Protrusible proboscis crowned with papillae and frequently with chitinous 

 jaws. A feature of this family is the possession of elytra on the dorsal surface of the parapodia, of 

 which the first pairs are always attached to segments 2, 4, 5 and 7, thereafter the arrangement varies. 

 Parapodia biramous, exceptionally reduced. 



Subfamily Polynoinae 

 Not exclusively pelagic. Twelve or more pairs of elytra, inserted on segments 2, 4, 5, 7, 9-23, thence 

 sometimes on every third segment up to the end of the body. 



Genus Lagisca Malmgren, 1865 

 Not exclusively pelagic. Fifteen pairs of elytra, normally covering the greater part of the body except 

 the posterior extremity. Proboscis with chitinous jaws. Parapodia biramous. 



Type species. Lagisca extenuata (Grube), 1840. 



Type locality. Mediterranean — not pelagic. 



Lagisca hubrechti (Mcintosh), 1900 

 Original localities. From the North-west Atlantic. 



Evarne Hubrechti Mcintosh, 1900, pp. 360-3, pi. 28, fig. 6, pi. 30, fig. 10, pi. 33, fig. 1, pi. 40, figs. 1-4 

 Lagisca Hubrechti Fauvel, 1914a, pp. 67-8, pi. 4, figs. 11-17. 

 Lagisca Hubrechti Fauvel, 19146, pp. 3-4. 



Lagisca Hubrechti Fauvel, 1916, pp. 28-32, pi. 1, fig. 1, pi. 3, figs. 1-5, 9-14. 

 Lagisca Hubrechti Fauvel, 1923, pp. 78-80, fig. 2ga-k. 

 Lagisca hubrechti Monro, 1930, p. 45. 

 Lagisca Hubrechti Fauvel, 1932a, pp. 10-11. 

 Lagisca hubrechti Wesenburg-Lund, 1939, pp. 6-7, fig. 3, chart 3. 

 Lagisca Hubrechti Stop-Bowitz, 1948, pp. 11, fig. 8. 



Description. The largest specimen of Lagisca hubrechti examined was reported from St. 100 by 

 Monro (1930) and is 22 mm. long by 13 mm. wide across the tips of chaetae, having the full com- 

 plement of fifteen elytrophores. Other specimens are smaller than this and range from 5 mm. long 

 by 4 mm. wide for twelve elytrophores. Notopodial chaetae are stout, transparent and unidentate 



