458 Avery E. Lainl)ert. 



LETTERING OF PLATES 



A. E., anterior end. 



a. m. e., anterior median eyes. 



a. f., amniotic fold. 



ant. gr., anterior groove. 



ant. ves., anterior vesicle. 



ap., appendages. 



bid., blastodisc. 



blp., blastopore. 



br., brain. 



chl., chelicera. 



chl. c, coxal portion of chelicera. 



chl. gl., cheliceral gland. 



dil. seg., cheliceral segment. 



cht, chitinovis covering. 



('. gl., cei'ebral ganglia. 



c. pi., cephalic plate. 



c. th., candal thickening. 



ec. f., ectodermal fnrrow. 



ect., ectoderm. 



e. p., ectodermal pit. 



f. c, fat cells. 



g. b., germ band, 

 gl., gland. 



ht.. heart. 



lat. gr., lateral groove. 



1. e.. lateral eye. 



1. fr., lateral fiuTow. 



Is., lens. 



1. ves.. lateral vesicle. 



md. pdp., mandibular part of pedipalp. 



m. e.. median eye. 



HI. f.. median fiu'row. 



111. o. II.. middle optic pit. 



msd.. mesoderm. 



mth.. mouth. 



iiius.. muscle. 



n. I)., neuroblast. 



n. c. cord. 



n. sp.. nuclear spindle. 



nu.. nucleus. 



oes.. opsophagus. 



0. f., optic fold. 



o. gl., optic ganglion. 



o. pi., optic plate. 



o. 11.. optic nerve. 



