PACIFIC COAST OMGOCHyKTA. 



197 



REFEEENCE TO LETTEHS ON PLATES. 



a. c. gl. auterior calcic gland. 



a./, anterior fold of uepbridium. 



a. nephr. anterior nephridia. 



a. spd. anterior spermdiict. 



atr. atrium. 



bd. l)0(ly-wall. 



bt. blood vessel or capillaries. 



bl. s. blood siuiis. 



br. bridge in uephridium. 



buc. buccal cavity. 



c. clusters of lunate cells. 



c. c. columnar cells. 



c. ep. ca;lomic epithelium. 



c. gl. calciferoiis glands. 



ch. discharge chambers of glands. 



chlo. chloragogeu cells. 



cil. ciliated epithelium. 



cl. c. clitellar cells. 



cl. clitellum. 



c. 7)1. circular muscles. 



com. commissures. 



c. r. ciliated rosettes or sperm-funnels. 



c. i. connective tissue. 

 CM. cuticle. 



d. gl. dark staining glands. 

 d. pr. dorsal pore. 



d. V. dorsal vessel. 



e. epithelial cells. 

 ept. epithelium. 

 gl. glands. 



gl. c. uniccllar glands. 



gl. pr. glandular part of prostate. 



gizz. gizzard. 



h. heart. 



hij. hypodermis. 



!. s. gr. intersegmental groove. 



I. c. large cells. 



I. in. longitudinal muscles. 



VI. muscles. 



m. air. muscular atrium, 



mes. mesenteric tissue. 



m. pr. muscular prostate. 



n. nephridia. 



n. c. nerve cells. 



ne. nerve ganglion. 



iip.c. neck of uephridium. 



neph. uephridium. 



neph.p. uephropore. 



ffis. u'sophagus. 



ov. ovary. 



ovd. oviduct. 



org. sense organ. 



p. c. gl. posterior calciferous diverticulum. 



p.f. posterior fold, nephi'idium. 



phx. pharynx. 



p. neph. posterior nephridia. 



pr. prostate. 



p. spd. posterior spermduct. 



pr. slo. prostomium. 



ps. peuial seta>. 



prt. peritoneum. 



se. secreted matter. 



s. inl. sacculated intestine. 



Sep. gl. septal gland. 



Sep. septum. 



s. gl. suprapharyngeal glands. 



s. org. b. sense organ cells in equatoreal zone. 



s. org. pr. sense organ cells in prostomium, 



spc. sperm-cells. 



spd. spermduct. 



S]}gn. spermatogonia. 



spr. spur of uephridium. 



s. ps. sac with penial setee. 



sp. s. sperm-sacs. 



s. ph. sgl. subpharyngeal glands. 



splh. spermatheca. 



spth. p. spermathecal pore. 



t. testes. 



t. m. transverse muscles. 



trb. trabecula. 



th. spd. thicker part of spermduct. 



tu. tubular intestine. 



tub. p. tubercula pubertatis. 



ty. typhlosole. 



u. c. unicellular glands. 



V. g. ventral ganglion. 



V. V. ventral vessel, 



V. sgl. ventral gland. 



w. " windings " of nephridial ducts. 



