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CALIFORNIA ACADEMY OF SCIENCES. 
© 
PLATE XLVI. 
BENHAMIA PALMICOLA. 
Longitudinal section of the genital somites. 
BENHAMIA NANA. 
A specimen; natural size. 
The yentral side of the anterior somites, showing the exterior pores, etc. 
The ventral side of the most anterior somites, showing the everted pharynx and the very narrow somite i, etc. 
Side view of the same somites. 
‘The anterior twenty somites laid open, exposing the various organs, ete. The alimentary canal is removed 
and the whole figure is held somewhat schematic. atr. thickened part of the spermducts. 
Part of a posterior somite viewed from the inner side, showing the relative position of sete and nephropores. 
1, 2, 3, 4 refer to the set; a, b, c to the nephridia. 
