fAClFiC COAST or^ir.ocii.KTA. 



I8l 



REFEUENCE TO LETTERS ON PLATES. 



a. c. gl. anterior calcic glniul. 



a.f. anterior fold of nephridium. 



a. nephr. anterior uephridia. 



a. spd. anterior spermduct. 



air. atrium. 



b(l. bod J- wall. 



bl. blood vessel or capillaries. 



bl. s. blood siuns. 



br, bridge in nephridium. 



buc. buccal cavity. 



c. clusters of lunate cells. 



c. c. columnar cells. 



c. ep. coelomie epithelium. 



c. ijl. calciferous glands. 



ch. discharge chambers of glands. 



ehlo, chloragogen cells. 



(■;/. ciliated epithelium. 



cl. c. clitellar cells. 



cl. clitellum. 



c. m. circular muscles. 



com. commissures. 



c. r. ciliated rosettes or sperm-funnels. 



c. t. connective tissue. 

 ru. cuticle. 



d. gl. dark staining glands. 

 d. pr. dor.^al pore. 



d. V. dorsal vessel. 



e. epithelial cells. 

 ept. epithelium. 

 ;;(. glands. 



gl. c. unicellar glands. 



gl. pr. glandular part of prostate. 



gizz. gizzard. 



h. heart. 



hy. hypodermis. 



i. s. gr. intersegmental groove. 



I. c. large cells. 



I. 7)1. longitudinal muscles. 



m. muscles. 



7rt. cUr. muscular atriiim. 



mes. mesenteric tissue. 



ni. pr. muscular prostate. 



n. nephridia. 



n. c. nerve cells. 



ne. nerve ganglion. 



uec. neck of nephridium. 



neph. nephridium. 



neph. p. nephropore. 



ces. oesophagus. 



ov. ovary. 



ovd. oviduct. 



org. sense organ. 



/). c. gl. posterior calciferous diverticulum. 



p. /. posterior fold, nephridium. 



phx. pharynx. 



p. mph. posterior uephridia. 



pr. prostate. 



/'. spd. posterior spermduct. 



pr. slo. prostomium. 



pa. penial seta>. 



prl. peritoneum. 



se. secreted matter. 



«. inl. sacculated intestine. 



Sep. gl. septal gland. 



Sep. septum. 



s. gl. suprapharyugeal glands. 



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



8. org. pr. sense organ cells in prostomium. 



spc. sperm-cells. 



spd. spermduct. 



spgn. spermatogonia. 



spr. spur of nephridium. 



s. ps. sac with penial setse. 



sf). s. sperm-sacs. 



s. ph. sgl. subpharyngeal glands. 



spth. spei-matheca. 



spth. ]>. spermathecal pore. 



I. testes. 



t. m. transverse muscles. 



trb. trabeoula. 



th. spd. thicker part of spermduct. 



til. tubular intestine. 



tub. p. tubercula pubertatis. 



ty. typhlosole. 



«. c. unicellular glands. 



V. g. ventral ganglion. 



V. V. ventral vessel. 



V. sgl. ventral gland. 



w. "windings "' of uephrulial ducts. 



