Plate 42. BRIGHTSEAT PLANKTONIC SPECIES 



(All figures X 145) 



Pa.L'c 

 Figures la, b. Chilogucinbelina mursri (Kline) 179 



la, Side view ot hypotype (USNM P58S8), 

 showing narrow test and asymmetrical aperture. 

 lb, Edge view. 

 P'lGURES 2a-c. Clobigerina iriloculinoides Plummer 183 

 2a, Spiral view of hypotype (USNM P5699) 

 showing reticulate surface. 2b, Umbilical view, 

 showing distinct lip. 2c, Edge view. 

 Figures 3a-c. iUoborotalia pseudobulloides (Plum- 192 

 mer) 



3a, Spiral view of hypotype (USNM PS 728). 

 3b, Umbilical view, showing prominent apertural 

 lip. 3c, Edge view. 

 Figures 4a-c. Cloborotalia perclara Loeblich and 191 

 Tappan, new species 



Page 

 4a, Spiral view of liolotype (USNM PS356), 

 showing depressed spire and elevated peripheral 

 region, numerous whorls and low chambers. 4b, 

 Umbilical view, showing somewhat spinose sur- 

 face. 4c, Edge view. 

 P'igures Sa-c. Cloborotalia compressa (Plummer) 188 



5a, Spiral view of hypotype (USNM PS719). 

 5b, Umbilical view. 5c, Edge view, showing 

 compression and subacute periphery. 

 Figures 6a-7c. Globigerinoides daubjergrnsis (Rron- 184 

 nimann) 



6a, 7a, Spiral views of hypotypes (USNM 

 P571Sa,b), showing well developed supplemen- 

 tary apertures and characteristic spinose surface. 

 6b, 7b, Umbilical views. 6c, 7c, Edge views, 

 showing variation in height of spire. 



279 



