PACIFIC 
REFERENCE 
R 
.c. gl. anterior calcic gland. 
. f. anterior fold of nephridium. 
a. nephr. anterior nephridia. 
a. spd. anterior spermduct. 
atr. atrium. 
bd. body-wall. 
bl. blood vessel or capillaries. 
bl. s. blood sinus. 
br. bridge in nephridium. 
buc. buccal cavity. 
c. clusters of lunate cells. 
c.c. columnar cells. 
c. ep. ecelomic epithelium. 
c. gl. calciferous glands. 
ch. discharge chambers of glands. 
chlo. chloragogen cells. 
cil. ciliated epithelium. 
cl. c. clitellar cells. 
cl. clitellum. 
c. m. circular muscles. 
com. commissures. 
a 
c. r. ciliated rosettes or sperm-funnels. 
c. t. connective tissue. 
cu. cuticle. 
d. gi. dark staining glands. 
d. pr. dorsal pore. 
d. v. dorsal vessel. 
e. epithelial cells. 
ept. epithelium. 
gl. glands. 
gl. c. unicellar glands. 
gl. pr. glandular part of prostate. 
gizz. gizzard. 
h. heart. 
hy. hypodermis. 
i. s. gr. intersegmental groove. 
1. c. large cells. 
l. m. longitudinal muscles. 
m. muscles. 
m. atv. muscular atrium. 
mes. mesenteric tissue. 
m. pr. wauscular prostate. 
n. nephridia. 
n. c. nerve cells. 
ne. nerve ganglion, 
COAST OLIGOCH ATA. 185 
TO LETTERS ON PLATES. 
nec. neck of nephridium. 
neph. nephridium. 
neph. p. nephropore. 
es, cesophagus. 
ov. ovary. 
ovd. oviduct. 
org. sense organ, 
p. c. gl. posterior calciferous diverticulum. 
p.f. posterior fold, nephridium. 
phx. pharynx. 
p. neph. posterior nephridia. 
pr. prostate. 
p- spd. posterior spermduct. 
pr. sto. prostomium. 
ps. penial sete. 
prt. peritoneum. 
se. secreted matter. 
s. int. sacculated intestine. 
sep. gl. septal gland. 
sep. septum. 
s. gl. suprapharyngeal glands. 
s. org. b. sense organ cells in equatoreal zone. 
8. ory. pr. sense organ cells in prostomium. 
spc. sperm-cells. 
spd. spermduct. 
spgn. spermatogonia. 
spr. spur of nephridium. 
s. ps. sac with penial sete. 
sp. 8. Sperm-sacs. 
s. ph. sgl. subpharyngeal glands. 
spth. 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. 
