194 CALIFORNIA ACADEMY (IK SCIENCES. 



PLATE LV. 



SPAEGANOPHILUS SMITHI. 



120. A large specimen, natural size, ventral view. 



1'21A. Anterior part of the body, side view, showing tuberciulii pubertatis ridges, a'nl their anterior extension to 



the center of somite xi. The dorsal and ventral termini of clitellum marked by x. 

 I21B. The anterior somites, ventral view. The spermiduial pore is seen about half way between setie 1 and 2 a id 



the tubercula pubertatis in xix/xi. 

 122. Two of the clitellar somites, side view, showing tubercula pubertatis ridge, v. ventral. <l. dorsal side. 



SPAEGANOPHILUS SONOMA. 



12;?. The same as 122, but from Spargniio/<hilu.s sonortue, showing the tubercula pubertatis ridge to consist of a suc- 

 cession of separate tubercles, two or three on every somite, with the groove very nearly in the center of each 

 papilla. 



SPARGANOPHILUS SMITHI. 



124. Longitudinal section of the anterior somites, composed from several sections, v. sgl. ventral septal glands in 



V, vi, vii. s. V. spermtanks. s. «. sperm-sacs. /. four large folds of the dorsal vessel in somites xiv-xviii. 

 sp. gl. prostates. 



125. A series of outline drawings of spermathecjp from one specimen. 



SPAEGANOPHILUS SONOMA. 



126. Outlines of spermathecse from a single specimen. 



SPAEGANOPHILUS SMITHI. 



127. Cross-section of septum xi/xii. 



128. Cross-section of the body; the Roman numeral indicates the somite. 



129. Cross-section of the body; the Roman numerals indicate the somites. 



