LIVING BKACHIOPODA. 



}77 



c. c. — coelomic cavity. 



ci. — cirrus or cirri. 



ci. m. — cirri muscles. 



c. 1. — corpora lutea. 



c. m. — cutaneous muscles. 



c. o. — central oblique muscle. 



c. r. — ciliary ridge. 



cru. — crura. 



c. s. — coelomic sinus. 



c. t. — connective ti.ssue. 



c. w. — coelomic wall. 



Y>. — dorsal shell. 



di. — divaricator muscle. 



e. — eggs. 



e. e. — ectodermal epithelium. 



e. g. — external glands. 



en. — endothelial lining of pallium. 



e. o. — external oblique muscle. 



e. s. — encircling sinus. 



f . — faeces. 



f . f. — folds of funnel. 



f . y. — fibrous yoke. 



g. — gut. 



g. a. — gill ampullae. 



g. b. — genital baud. 



g. b. s. — great brachial sinus. 



g. en. — glandular enlargements. 



g. {.—gill fold. 



g. g. — glandular growth on edge of ilioparietal band. 



gl. — gland cells. 



gp, — ^gastro-parietal band. 



g. p. a. — ganglion of posterior adductor muscles. 



gp. ni. — gastro-parietal mu.scle. 



g. t. — glandular tip of spermary thread. 



H. — " heart of Hancock." 



i. — intestine. 



i, I). — inner band of pallial muscles. 



in. — infra-oesophageal ganglion. 



ip. — ilio-parietal band. 



i. t. — inner tube. 



1. — lateralis muscle. 



la. — lacunae. 



]. b. — lateral branch of anterior sinus. 



1. i. — lumen of intestine. 



1. p.— lateral parietal band. 



1. p. s. — lateral pallial sinus. 



1. s. — lateral septa. 



m. — mouth. 



m. cl. — median clu.ster of setae. 



m. f. — muscle Kber. 



m. g. — median groove of pallium. 



m. p. — main pallial sinus. 



m. s. — median septum. 



m. si. — median sinus. 



m. t. — nuLscular tube. 



n. — nerve. 



n. b. — nephridium body. 



n. ba. — nephridial band. 



ne. — nephridiiun. 



nf. — nephrostonie. 



n. o. — nephridial opening (external). 



n. p. — nephridial papillae. 



n. s. — natural size. 



n. t. — nephridial tube. 



o. a. — obliquus anterior muscle. 



o. b. — outer band of pallial muscles. 



oc. — anterior occlusor mu.scle. 



oc. I. — occlusor externus muscle. 



oc. II. — occlusor internus muscle. 



oe. — oesophagus. 



o. e. — obliquus externus muscle. 



o. h. s. — outer horny sheath. 



o. i. — obliquus internus mu.scle. 



0. 1. s. — opening of lateral sinus. 



o. m. — obliquus medius muscle. 



o. p. — obliquus posterior muscle. 



o. p. s. — outer pallial sinus. 



o. s. — opening of main pallial sinus. 



ot. — otocyst. 



ov. — ovaries. 



pa. — parasite. 



p. b. — posterior band. 



p. b. I. — posterior branch of lateral siims. 



p. c. — peduncular cavity. 



p. ca. — peduncular canal. 



p. ch. — pallial chamber. 



p. cl. — posterior cluster of setae. 



pe. — peduncle. 

 pb. — phai-ynx. 

 ph. g. — pharyngeal gland. 



ph. m. — pharyngeal nni.scles. 



p. lu. — perivisceral membrane. 



p. n. — peduncle notch. 



p. o. — posterior occlusor muscle. 



pro. — protegulum. 



p. s. — peduncular septum. 



p. si.^ — peduncular sinus. 



r. — rectum. 



r. b. — retractor brachia nm.scle. 



re. — rectus muscle. 



ro. — rostrum. 



s. — sinus at base of cirri. 



s. b. — shell border. 



s. b. s. — small brachial sinus. 



.se. — setae. 



s. f. — setigerous follicles. 



s. g. — stomachal glands. 



s. g. d. — stomachal gland duct. 



s, g. o. — stomachal gland opening. 



s. ni. — setal muscles. 



sp. — spermatospore. 



spe. — spermaries. 



.spi. — spiculae. 



spm. — .spermatozoa. 



sp. t. — spermatic threads. 



s. s. — supporting substance. 



