Plate 5. 



Figs. 1, 2. Lfif/cna lacrifnita. X150. After Heroii-Allen iind Earland. 



o. Lariciia IneviH. X75. "Curved type." After Heron-Allen and 

 Earland. 



4. LcKjcna lacvif!, var. nehuJosa. X50. D2144. 



5. Lngcva }<ievi^. var. nebulosa. X50. D2713. 



t). Lagena htfjenoides. XIOO. "Trigonal." After Balkwill and Wright. 

 7. Lagciia lageiioides. X40. D2150. 

 S. Lafjena hif/euoidcs. After Williamsun. 



9. Lagcmi Idgoioides, var. tentdstriata. X120. "Trigonal specimen." 

 After Heron-Allen and Earland. 

 1(1. Lagciia liiicafd. After Williamson. 



11. Lagena Iongisi)in(i. X40. D2394. 



12. Lagena longisfjiHa. X40. 1)2097. 



