ATLAS OF BIOLOGY. 



</.. Germinal spots. 



//.r. Germinal vesicle. 



li. Heart. 



/i.rf. Hypodermis. 



/.</. Hind gut. 



liji. Hepatic artery. 



li.pc. Digestive gland (so-called liver). 



hi/. Hypoblast. 



?'. Intestine. 



i.a. Inferior abdominal artery. 



is. Ischiopodite. 



i.s. Intersternal membrane. 



i.t. Intertergal membrane. 



lli. Labrutn. 



l.b. Lenticular bodies. 



I.e. Liver cells. 



l.g. Levator muscles of stomach. 



I.t'. Lateral tooth. 



I.t." Accessory lateral tooth. 



/.c. Levator abdominis muscle. 



m. Mouth. 



mh. Mesoblast cells. 



mil. Mandible. 



me. Meropodite. 



m.g. Midgut. 



m.m. Mandibular muscles. 



in. op. Muscles of eye-stalk. 



m.p. Mandibular palp. 



m.pp. Membrana propria. 



nit. Metastoma. 



m.t. Median tooth. 



ni.f 1-2. Maxilla; 1 and 2. 



mxp 1-8 Maxillipedes 1 to 8. 



i>.au. Auditory nerve. 



lie. Nucleus. 



11. {I. Ganglionic nerves. , 



11. iy. Interganglionic nerves. 



ii. op. Optic nerve. 



n.v'. Anterior visceral nerve. 



11. r". Posterior visceral nerve. 



n. r. Ovicell. 



.(/. Ovary duct. 



n.il'. Cut edge of the same. 



ie. (Esophagus. 



nl. " Olfactory " setffi. 



u/i. Ophthalmic artery. 



o.n'. Ovisac, ripe. 



u.n". Ovisac, young. 



at. Otoliths. 



or'. Ovary, anterior lobe. 



OK". Ovary, posterior lobe. 



p. Pericardia! sinus. 



p.li. Pleurobranchia. 



p.b'. Rudimentary pleurobranchia. 



pc. Ferment cells. 



pc'. Secretionary product of the same. 



p.c. Procephalic process. 



p.ea. Pore canals. 



p.g. Posterior gastric muscles. 



pi. Pleuron. 



pr. Propodite. 



pt. Protopodite. 



py. Pyloric chamber. 



py'. Dorsal pyloric ossicle. 



py". Median pyloric ossicle. 



pi/.l. Lateral pyloric ossicle. 



r. Rectum. 



re. Green gland. 



vr! . Vestibule of the same. 



x. Stomach. 



s.a. Superior abdominal artery. 



nc. Setae. 



ni/. Scaphognathite. 



n.x. Sternal sinus. 



s.sj>. Striated spindle. 



st. Sternal artery. 



xt 1-20. Sterna 1 to 20. 



sir. Swimmerets. 



t. Telson. 



//. Tail fin. 



/// 1-20. Terga 1 to 20. 



th.ii. Thoraeo-abdominal liukvvork. 



la'. Testis, anterior lobe. 



tx", Testis, posterior lobe. 



v'. Dorsal valves of heart. 



r". Ventral valves of heart. 



'". Lateral valves of heart. 



v.cp'. Lateral cardio-pyloric valve. 



v.ep". Median cardio-pyloric valve. 



v.d. Vas deferens. 



v.p. Valvular termination of lining of fore-gut. 



y. Food yolk. 



i. to xx. Appendages i. to xx. 



i'.toxx'. Articulations for the same. 



1. to 20. Segments 1 to 20. 



