iz8 DISCOVERY REPORTS 



Occurrence : 



St. 29 27' N., 15 07' W. 16. x. 25. From the stomach of Naucrates ductor 900-0 m., 1 $ with empty brood sac, 



8 mm. 

 St. 87. 25. vi. 26 (day). West of Cape Town, iooo(-o) m., 2 $$, 10 mm. and 8 mm., larger breeding. 

 St. 89. 28. vi. 26 (day). West of Cape Town, iooo(-o) m., 1 $, 7 mm., 1 imm. 

 St. 252. 20. vi. 27 (night). Midway between Cape Town and Gough I., 135 m., 1 imm. $, 3 breeding $$, largest 



ri'5 mm. 

 St. 256. 23. v. 27 (day). West of Cape Town, uoo-85o(-o) m., 1 juv. <$, 5 mm., 1 juv. ?, 4-5 mm. 

 St. 257. 24. vi. 27 (night). West of Cape Town, 25o(-o) m., 1 <?, 2 $?, all juv. 

 St. 266. ai. vii. 27 (night). Off West coast of South Africa, 20o(-o) m., 1 $, 8 mm. 

 St. 282. 12. viii. 27 (night). West of Cape Lopez, West Africa, 30o(-o) m., 1 ?, 8 mm., not fully adult. 

 St. 286. 17. viii. 27 (night). Midway between Cape Lopez and Ascension I., i25(-o) m., 1 ?, 9 mm., 1 juv. $. 

 St. 295. 25. viii. 27 (day). West of Sierra Leone, 270o-250o(-o) m., 1 imm. $. 

 St. 673. 25. iv. 31 (night). Mid-Atlantic, east of Tristan da Cunha, 340-0 m., 1 <J, 8 mm. 

 St. 674. 25. iv. 31 (night). West of Tristan da Cunha, 280-0 m., 1 juv. $, 5 mm., 1 juv. $, 4-5 mm. 

 St. 676. 26. iv. 31 (night). North-west of Tristan da Cunha, 290-0 m., 1 imm. <J, 6-5 mm. 



St. 692. 9. v. 31 (night). Mid- Atlantic, equatorial zone, 350-0 m., 1 $, 8 mm., with large empty brood sac, 1 juv. 

 St. 693. 10. v. 31 (day). Mid- Atlantic, equatorial zone, 250-0 m., 2 ??, with large empty brood sacs, larger 



8-5 mm. 

 St. 694. 10. v. 31 (day). Mid-Atlantic, equatorial zone, 210-0 m., 2 9?, larger 8 mm. 

 St. 698. 13. v. 31 (night). South-west of Cape Verde Is., 470-0 m., 1 juv. $. 

 St. 699. 14. v. 31 (night). West of Cape Verde Is., 370-0 m., 1 ?, 7 mm. 

 St. 701. 16. x. 31 (night). Off Cape Verde Is., 242-0 m., 1 juv. $. 



St. 1377. 4. viii. 34 (night). South Atlantic, south-west of Cape Town, 100-0 m., 1 imm. $, 8 mm. 

 St. 1578. 26. iv. 35 (night). Midway between Cape Delgado and north of Madagascar, 500-0 m., 1 adult $, 



8-5 mm., 1 juv. $. 

 St. 1596. 21. x. 35 (night). Gulf of Guinea, 450-310 m., 1 adult $, with empty brood sac, 8 mm. 

 St. 1602. 27. x. 35 (night). West of south-west Africa, 175-0 m., 1 $, 8 mm. 

 St. 1747. 23. iv. 36 (day). South Indian Ocean midway between Durban and Perth, Western Australia, 400-0 m., 



1 $ with large empty brood sac, 10 mm. 

 St. 2685. 22. vi. 50 (night). West of Cocos Is., Indian Ocean, 250-100 m., 1 juv. 

 St WS 977. 6/7. iii. 50 (night). Nearly 200 miles west of Walvis Bay, 500-250 m., 1 juv. 3 mm. 

 St. WS 978. 7. iii. 50 (day). 150 miles west of Walvis Bay, 100-50 m., 1 imm. ^, 5-6 mm. 



Distribution. E. typica has a wide distribution in the tropical and sub-tropical waters of the 

 southern hemisphere in the Atlantic, Indian and Pacific Oceans and has been recorded from near the 

 Bermudas in the northern hemisphere. It has usually been taken in oblique hauls from relatively 

 shallow depths to the surface. It was collected in twenty-five hauls by ' Discovery ' and ' Discovery II ' 

 and in two vertical hauls by 'William Scoresby' from between 1000 m. and 135 m. to the surface. 

 The greatest depth at which it was taken in a closing net was 450-510 m. and the least was 100-50 m. 

 It is not a gregarious form, usually only one or two specimens were captured in a haul and the greatest 

 number taken together in the Discovery collection was four at station 252. 



Euchaetomera tenuis G. O. Sars, 1883 



1883 Euchaetomera tenuis G. O. Sars, p. 43; 1885a, p. 214, figs. 



1905 Euchaetomera fozvleri Holt and Tattersall, pp. 123 and 144, figs. 



1909 Euchaetomera tenuis, Tattersall, p. 130. 



1910 Euchaetomera tetiuis, Hansen, p. 66, figs; 1912, p. 201. 

 1914 Euchaetomera tenuis, Zimmer, p. 394. 



1930 Euchaetomera tenuis, Illig, p. 448. 



195 1 Euchaetomera tenuis, Tattersall and Tattersall, p. 275, figs. 



