. U S. B F, 1906. 



Plate IV. 



1-2. ScalprUinii hfiiraimsf. Tj^je, side and carinal views. 

 3. Scnlprl/um iiarijicum. Detail of struclure at base of carina. 

 ■4. Sralif'lhim pnriffnim. Typo. 



5. J>irlitlnsj,is hnwnini.^if. Tvpt*. 



6. Fo-rHasmn hrllum. Type. 



7. Alf}Ki!i rrx. Type. 



K A/rpns prrrnrhiata. Cotypes. 

 9-10. Vtrrara halothcca. Tvpe. Top and carino-rostral views. 



