236 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



DEPTH IN METERS 



100 200 



300 



400 500 1000 2000 3000 



obaculites cf . foliaceus (H. B. Brady) 



Angulogerina bella Phleger and Parke 



Asterigerina carinata d'Orbigny 



Bifarina advena (Cushinan) 



rrogularis Phleger and Parke 



albatrossi Cushrnan 



B. barbata Phleger and Parke 



B. fragilis Phleger and Parker 



B. goesii Cushman 



B. hastata Phlegtr and Parke 



B. lov/mani Phleger and Parke 



B. minima Phleger and Parke 



B. pulchella (d'Crbigny) var. primitiv 

 Cushman 



npUx Phleger and Parker 



B. striatula Cushman var. spinata 

 Cushman 



B. subaenariensis Cushman va 



subspinescens Cushman 



B. translucens PhUger and Parke 



L aculeata d'Orbigny 



aLazanensis Cushman 



marginata d'Orbigny 



spicata Phleger and Parke 



striata d'Orbigny var. mexica 

 Cushman 



B. tenuis Phleger and Parke 



Buliminella cf. bassendorfensis Cushman 



B. elegantissima (d'Orbigny) 



Cancris oblonga {Williamson) 



Cassidulina crassa d'Crbigny 



C. curvata Phleger and Parke 



C. laevigata d'Orbigny var. carinata 



d'Crbigny 



rossi australis Phleger and Parker 



C. subglobosa H. B. Brady 



H h 



H h 



-\ h 



H h 



H h 



J L. 



Figure 55. — Generalized depth ranges of beithonic Foraminifera in the Gulf of Mexico. Solid lines indicate relatively 



greater abundance than dashed lines. 



