PLATE XXXTTT. 



Figure 1. f!/i!r(ihiciijiii(i aiifilhinnii D'Orliigny. Side view, ;< Vlh. Statimi r,!r>l , Jitint Spring Bayou, Virksluiru:, 



Miss. 

 2. (JiiiiiqiiiJi)i-i(Iliui aiiibi Cushman, n. sp. Side view uf t\\n' ^pe^imell, X 125. iStation (',451, Mint Spriiii,' 



Uayou, Vicksliuru, Miss. 

 ;;. (jiniifiiiiltH-iilhui riiti/v? ( 'ashman, n. sp. Side view of another specimen from opposite side, X 125. Station 



(It'll, Mint Sprint,' Hayou, Vickslmrg, Miss. 

 -1. Ti-'hiinlinii sriil/iliiriitii Cushman. n. sp. Side view of type specimen, X 12.'i. Station (i451. Mint Sprin<j; 



Bayou, Vickslnu'i,', Miss. 

 5. Trilnriilimi snil iiliirahi Cushman, n. sp. Viewed from the side of the last-formed chamlier, X 125. Stalimi 



(1451, Mint Sprins^ Uayou, Vicksliursj;, Miss. 

 (1. (^iiiiiqiieliiniliiui /»s//(/ Cushman, n. sp. Side view of type specimen, X 125. Station (1448, (ilass I5a\nu, 



Vicksliur;;, Miss. 

 7. Bitnriiliiia hiniimln l)'Oilii;;ny. l-'iout view, •' 10(1. Station (;I5l'. Mint Sprini; I'.ayou, Vickshurs,'. Miss. 

 S. (JiiiiiqiiiloniUixi li>!Silhilii Cushman, n. sp. Side view of type specimen, >; iL'5. Station (;447, Class 



Uayou, Vicksliurg, Miss. 

 1.50 



