DESCRIPTION OF SPECIES H3 



Gonads. The form of the gonads is not exactly that described by Hartmeyer (1912), who stated 

 that the testis follicles are arranged in a complete ring round the ovary. Instead I find that the testis 

 follicles (Text-fig. 64, t) are generally confined to the dorsal side and the anterior end of the ovary 

 (ov.). In some specimens the oviduct is simple, short and terminal, but in a few of those from South 

 Georgia it is branched in an antler-like fashion (od.). I do not know if all the branches have openings. 

 The male openings are on about five small sperm ducts (s.d.) arranged along the dorsal margin of 

 the gonad. 



Distribution. Antarctic (Kerguelen, South Georgia), Subantarctic (off coast of Argentina). 



2.0 mm 



Text-fig. 65. Eugyra brewinae sp.n. (St. 936): A, specimen with test removed; B, oral tentacle; C, dorsal 

 tubercle and ganglion ; D, part of branchial wall ; E, gonad. 



Eugyra brewinae sp.n. (Text-fig. 65) 



Holotype. Size: 5 mm. diameter. 



Diagnosis of species. Body small and covered with sand. Test and body wall very thin and trans- 

 parent. Dorsal tubercle a simple longitudinal slit. Branchial sac with six longitudinal bars on each 

 side. Stigmata in regular double spirals. Gonad on left side only, within primary intestinal loop, 

 consisting of central ovary and radially arranged, branched testis-lobes. Renal sac small, close to 

 stomach. 



