70 



J.A. ALLEN, H.L. SANDERS AND F. HANNAH 



3779 



9°49.0'S 10°33.0'E 



Fig. Ill Yoldiella enata. Outlines of shells from the right side to 

 show variation in shape with growth of specimens from Sta. 301, 

 Guyana Basin. (Scale = 1.0 mm). 



Fig. 112 Yoldiella enata. Lateral view from the right side of the 

 internal morphology of a specimen from Sta. 301, Guyana Basin. 

 (Scale = 1.0 mm). For identification of the parts see Fig. 34. 



335 3882- 26 40°25.3'N 46°30.0'W ES 31. 8.72 

 3919 



Knon-35 340 3264- 16 38°14.4'N 70°20.3'W ES 24.11.73 



3356 - 38°17.6'N 70°22.8'W 



SIERRA LEONE BASIN 



Atlantis II 148 3814- 1 10°37.0'N 18°14.0'W ES 7. 2.67 

 31 3818 



149 3861 25 10°30.0'N 18°18.0'W ES 7. 2.67 



155 3730- 7 00°03.0'S 27°48.0'W ES 13. 2.67 

 3783 



156 3459 4 00°46.0'S 29°28.0'W ES 14. 2.67 



- 00°46.5'S 29°24.0'W 



ANGOLA BASIN 



Atlantis II 197 3865- 2 10°29.0'S 9°04.0'E ES 21. 5.68 

 42 4595 



198 4559- 4 10°24.0'S 9°09.0'E ES 21. 5.68 

 4566 



199 3764- 2 9°47.0'S 10°29.0'E ES 22. 5.68 



WEST EUROPEAN BASIN 











Chain 106 



323 3356- 

 3338 



9 



50°08.0'N 



13°53.7'W 

 13°50.9'W 



ES 



21. 8.72 





326 3859 



12 



50°04.9'N 

 - 50°05.3'N 



14°23.8'W 

 14°24.8'W 



ES 



22. 8.72 





328 4426- 



9 



50°04.7'N 



15°44.8'W 



ES 



23. 8.72 





4435 















330 4632 



137 



50°43.5'N 

 - c50°43.4'N 



17°51.7'W 

 17°52.9'W 



ES 



24. 8.72 



Jean Charcot 













(Polygas) 



DS20 4226 



25 



47°33.0'N 



9°36.7'W 



DS 



24.10.72 





DS21 4190 



8 



47°31.5'N 



9°40.7'W 



DS 



24.10.72 





DS22 4144 



14 



47°34.1'N 



9°38.4'W 



DS 



25.10.72 





DS23 4734 



2 



46°32.8'N 



10°21.0'W 



DS 



26.10.72 



(Biogas III) 



DS41 3548 



1 



47°28.3'N 



9°07.2'W 



DS 



26. 8.73 





DS42 4104 



1 



47°32.1'N 



9°35.6'W 



DS 



27. 8.73 



(Biogas IV) 



DS55 4125 



80 



47°34.9'N 



9°40.9'W 



DS 



22. 2.74 





DS56 4050 



3 



47°32.7'N 



9^8.2'W 



DS 



23. 2.74 





DS60 3742 



6 



47°26.8'N 



9°07.2"W 



DS 



24. 2.74 



Cyros 















(Biogas V) 



DS66 3480 



21 



47°28.2'N 



9°00.0"W 



DS 



16. 6.74 





DS67 4150 



4 



47°31.0'N 



9°35.0'W 



DS 



17. 6.74 





DS68 4550 



3 



46°26.7'N 



10°23.9'W 



DS 



19. 6.74 



Jean Charcot 













(Biogas VI) 



DS75 3150 



4 



47°28.1'N 



9°07.8"W 



DS 



22.10.74 





DS76 4228 



243 



47°34.8'N 



9°33.3"W 



DS 



23.10.74 





DS77 4240 



55 



47°31.8'N 



9°34.6'W 



DS 



24.10.74 





DS78 4706 



3 



46°31.2'N 



10°23.8'W 



DS 



25.10.74 





DS79 4715 



9 



46°30.4'N 



10°27.1'W 



DS 



26.10.74 





DS80 4720 



3 



46°29.5'N 



10°29.5'W 



DS 



27.10.74 





CP13 4134 



2 



47°34.4'N 



9°38.0'W 



DS 



23.10.74 



Jean Charcot 0S02 4829 



8 



48°19.2'N 



15°15.7'W 



OS 



2. 8.76 



(Incal) 



0S05 4248- 



9 



47°31.3'N 



9°34.6'W 



OS 



7. 8.76 





4296 





- 47°32.2'N 



9°34.7'W 









0S66 4316- 



43 



46°27.3'N 



9°36.2'W 



OS 



9. 8.76 





4307 





- 47°27.9'W 



9°36.0'W 









0S07 4249 



63 



47°31.8'N 



9°34.3'W 



OS 



10. 8.76 





0S08 4327 



42 



47°29.8'N 

 - 47°29.5'N 



9°39.2'W 

 9°38.8'W 



OS 



11. 8.76 





WS03 4829 



7+2v 



48°19.2'N 

 - 4819. l'N 



15°23.3'W 

 15°22.5'W 



WS 



1. 8.76 





WS07 4281- 



30 



47°30.6'N 



9°37.1'W 



WS 



7. 8.76 





4274 





- 47°31.2'N 



9°35.7'W 









WS08 4287- 



36 



47°30.5'N 



9°33.7'W 



WS 



9. 8.76 





4301 





- 47°29.3'N 



9°34.1'W 









WS09 4277 



11 



47°28.8'N 

 - 47°27.9'N 



9°34.0'W 



WS 



10. 8.76 





WS10 4354 



37 



47°27.3'N 

 - 47°28.3'N 



9°39.9'W 



WS 



14. 8.76 





DS11 4823 



3 



48°19.2'N 



15°23.3'W 



15 22.5'W 



DS 



1. 8.76 





DS14 4248- 



20 



47°32.6'N 



9°35.7'N 



DS 



7. 8.76 





4254 





- 47°32.9'N 



9°35.1'W 









DS15 4211 



3 



47°33.6'N 



9°39.1"W 

 9°38.5'W 



DS 



8. 8.76 





DS16 4268 



57 



47°29.8'N 

 - 47°20.2'N 



9°33.4'W 



DS 



9. 8.76 





CPU 4823 



1 



48°20.4'N 

 • 48°21.1'N 



15°14.6'W 

 15°13.7"W 



CP 



1. 8.76 



Widely distributed throughout much of the Atlantic in North 

 America, West European, Sierra Leone and Angola Basins 

 at abyssal depths. With only two exceptions, all records are 



greater than 3200 m. Depth range: 2862-4829 m. 



Shell description (Figs. 113-116). Shell ovate, moderately 

 inflated, inequilateral, shell with very fine concentric lines, 

 ventral lines usually more conspicuous, few fine radial lines 

 from umbo to ventral edge, periostracum light straw colour; 

 umbo large, rounded, orthogyrate, anterior to midline, great- 



