FOLSOM: MOUTH-PARTS OF ANURIDA MARITIMA. 157 
EXPLANATION OF PLATES. 
All figures were drawn with the aid of a camera lucida, from preparations 
add. . 
app. ab.1-3 . 
app. pr’md. 
app. thr, 
Ciee cs 
ate. . 
ba., ba’. 
br. d. 
br. p. 
cav. bue. 
cd. v. 
COUs 
cht. 
clyp. 
coel. . 
cpt. . 
Gest. 
cta. 
d. 
de. 
dep. . 
dew’ceb. 
dil. 
hy Ae 
ec’drm. . 
ga. 
gn. inf’. 
gn. swe. 
Wdrm. . 
i. . 
cls. 
labs e 
lbr. 
Lor Fe 
Ing. 
ln. v. 
of Anurida maritima Guer. 
ABBREVIATIONS. 
Adductor. lvt. 
Abdominal appendages, mb. 
Ist, 2d, 3d. mb. rug. 
Premandibular append- md. . 
ages. ms’drm. 
Thoracic appendages, mu. . 
Ist, 2d, 3d. mx. 
Antenna. mx? . 
Articulation, or hinge. nl. gn. 
Base. ocl. 
Dorsal arm. Oude. 
Posterior arm. @. 
Buccal cavity. 0. pat 
Ventral cord. or. 
Pivot. pd. 
Chitin. pd’. 
Clypeus. phy. 
Coelom (body cavity). pig: 
Head. pli. 
Constrictor. pli. or 
Cuticula. a plp. . 
Dorsal. pr’ceb. 
Teeth. prd. . 
Depressor. prj. 
Deutocerebrum. prt.l 
Dilator. prt. ms. 
Duct. rel. 
Ectoderm. sng. cp’. 
Galea. sta. 
Infra-esophageal gan- stmd. 
glion. stp. 
Supra-cesophageal gan- sul. 
glion. sul. n. 
Hypodermis. swlnq. 
Intima. sut. 
Incisive. sut.m. 
Labium. te. q. 
Labrum. nite ae 
Lacinia. tri’ceb. . 
Lingua. v. 
Linea ventralis. 
yk. 
Elevator. 
Membrane. 
Corrugated membrane. 
Mandible. 
Mesoderm. 
Muscle. 
First maxilla. 
Second maxilla. 
Ganglionic nucleus. 
Ocellus. 
Dorsal organ. 
(CHsophagus. 
Post-antennal organ. 
Mouth. 
Foot. 
Footstalk. 
Pharynx. 
Pigment. 
Fold. 
Mouth fold. 
Palpus. 
Protocerebrum. 
Proctodeum. 
Projection. 
Lateral protrusor. 
Mesal protrusor. 
Retractor. 
Blood corpuscle. 
Stirrup. 
Stomodeum. 
Stipes. 
Trough. 
Neural groove. 
Superlingua. 
Suture. 
Median suture. 
Germ band. 
Tentorium. 
Tritocerebrum. 
Ventral. 
Yolk. 
