198 



t. gl. Glands of the hind-gut. 



7. /. Infero-lateral cardiac tooth. 



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



i. m. f. Inner median extensor muscle of the scaphognathite. 



/. 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. 



/.Gill lamella. 



lab. Labrum. 



lot. t. Lateral teeth. 



1. ex. prol. Lateral extensoi muscle of the protopodite. 



1. f. prot. Lateral flexor muscle of the protopodite. 



I. g. n. Lateral gastric nerve. 



lig. Ligament. 



I. m. Longitudinal muscle. 



I. py. Lateral pyloric ossicle. 



1. s. Lamella blood sinus. 



M. Meropodite. 



/tt.tt 1 . Muscle chamber of first antenna. 



TO.a 2 . Muscle chamber of second antenna. 



mand. Mandible. 



m. 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. 



TO. ext. P. Extensor muscle of the propodite. 



m. f. C'. Flexor muscle of the carpopodite. 



TO. /. D. Flexor muscle of the dactylopodite. 



TO. /. M. Flexor muscle of the meropodite. 



TO. /. P. Flexor muscle of the propodite. 



TO. g. Mid-gut. 



TO. o. Male genital opening. 



TO. py. Middle pyloric ossicle. 



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



M. V. -Main vesicle. 



mx l . First maxillipede. 



ma; 2 . Second maxillipede. 



mx A . Third maxillipede. 



n. Nucleus. 



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



n. ab. Abdominal nerve. 



n.'c. Nerve commissure. 



n. /. Foramen of ventral nerve mass for descending artery 



n. i. Nerve to hind-gut. 



n. 1. Nerve to digestive gland. 



TC. TO. Nerve to the mandibular muscles. 



n. po. Transverse post-oesophageal connective. 



n. t. Nerve to the integument. 



o. Eye. 



o. art. Ophthalmic artery. 



oe. Oesophagus. 



