St. Maurice and Ci^aiborns Pelijcypoda 223 



PLATE 22 

 gure Page 



I. A/ra i'ko!nboide//a liea, 2,6 mm 51 



An adult Claiborne sand specimen, figured somewhat less 

 than natural size but showing characteristic markings. For 

 interior, see pi. 21, fig. 13. 



2-4. Area rhoin., var. parsaba, n. var 52 



Fig. 2, 7.5 mm. 



3, 6.5 mm. 



4, 5,5 mm., Sabine River, La.-Tex. 



5-7. Area vaughani Casey 53 



Fig. 5, 15 mm. 



6, 13 " 



7, 10 mm., from St. Maurice. 



3-i6. Byssoarca {cuculloides ?), var. hidovieiana, n. var 54 



Fig. 8, 1 1.5 mm. 



9, 13 " 



10, 16 " 

 II, 6 <' 

 12,15 " 



13. 7 " 



14, 13 " 



15. 31 " 



16, 32 " from the Sabine River, La Tex. 



17. Byssoarea euculloides Con., 55 mm 54 



Type, Phila. Academy Coll. Jacksonian. 



18. Area reticulata Gmel., 14 mm 55 



From Newton, Miss. 



19. The same ; 10 mm. 



20. Area aldrichi Dall, 8 mm 55 



Claiborne. 



21. Area harrisi Sheldon, 5 mm 56 



Specimen probably in Coll. Johns Hopk. Univ. 



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