488 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



i. gl. — Glands of the hind-gut. 



i. I. — Infero- lateral cardiac tooth. 



i. m. ex. — Inner median flexor muscle of the scaphognathite. 



i. m. /. — Inner median extensor muscle of the scaphognathite. : 



i. py. e. — External inferior dilator muscle of the pyloric fore-gut. 



i. py. i. — Internal inferior dilator muscle of the pyloric fore-gut. 



i. s. — Infra-branchial sinus. 



j. d. — Junction between the descending artery and the sternal artery. 



1. — Gill lamella. 



lab. — Labrum. 



lat. t. — Lateral teeth. 



I. ex. prot. — Lateral extensoi muscle of the protopodite. 



I. /. prot. — Lateral flexor muscle of the protopodite. 



I. g. n. — Lateral gastric nerve. 



lig. — Ligament. 



I. m. — Longitudinal muscle. 



I. py. — Lateral pyloric ossicle. 

 /. s. — Lamella blood sinus. 



M. — Meropodite. 



ra.a 1 . — Muscle chamber of first antenna. 1 



ra.a 2 . — Muscle chamber of second antenna. 



mand. — Mandible . 



w. c. — Mesocardiac ossicle. 



md. palp. — Mandibular palp. 



med. p. — Median plate of endophragmal system. 



met. — Metastoma. 



m. ex. C. — Extensor muscle of the carpopodite. 



m. ex. M. — Extensor muscle of the meropodite. 



m. ext. D. — Extensor muscle of the dactylopodite. 



m. ext. P. — Extensor muscle of the propodite. 



m. /. C — Flexor muscle of the carpopodite. 



m. f. D. — Flexor muscle of the dactylopodite. 



m i. M. — Flexor muscle of the meropodite. 



m. f. P. — Flexor muscle of the propodite. 



m. g. — Mid-gut. 



m. o. — Male genital opening. 



m. py. — Middle pyloric ossicle. 



m. s. a. — Middle supra-ampullary ossicle. 



M. V. — Main vesicle. 



mi 1 . — First maxillipede. 



mx' 2 . — Second maxillipede. 



mx'K — Third maxillipede. 



n. —Nucleus. 



n. 1. — ft. 9. — Nerves arising from the ventral nerve mass of the thorax. 



ft. ah. — Abdominal nerve. 



ft. c, — NsrvQ commissure. 



ft /. — Foramen of ventral nerve mass for descending artery. 



II. i.— Nerve to hind-gut. 



n. I. —Nerve to digestive gland. 



ft. m. — Nerve to the mandibular muscles. 



ft. po. — Transverse post-oesophageal connective. 



ft. t. — Nerve to the integument. 



o. —Eye. 



o. art — Ophthalmic artery. 



oc— Oesophagus. 



