Thompson.— Metamorphoses of Hermit Crah. 
PLATE 9. 
Abbreviations Common to all Figures. 
a — anterior aorta. 
aa — antemiary arteries. 
ant l — anterior lobe of liver. 
car — carapace. 
ch int — chitinous gut. 
cpv — cardio-pyloric valve. 
dlv — dorso-lateral pyloro-intestinal 
valve. 
dor l — dorsal lobe of liver. 
dt — dorsal tooth. 
dv — dorsal pyloro-intestinal valve. 
gg — green gland. 
lit — heart. 
int —acliitinous gut. 
lat t — lateral tooth. 
Ic — lateral caecum. 
Ipp — lower pyloric pouch. 
Iv — lateral pyloro-intestinal valve 
Ivr — lateral-valve ridge. 
mpv — median pyloric valve. 
mus — muscles passing to limbs. 
oes — oesophagus. 
oes comm — oesophageal commissures. 
op — oesophageal plate. 
post i — posterior lobe of liver. 
upp — upper pyloric pouch. 
Fig. 47. 
Fig. 48. 
Fig. 49. 
Fig. 50. 
Fig. 51. 
Fig. 52. 
Fig. 53. 
Fig. 54. 
Fig. 55. 
Fig. 5G. 
Fig. 57. 
58. 
Fig. 47-50. Transverse sections, first zoea. 
At beginning of mandibles. X 85. gang, posterior cells of supra- 
oesophageal ganglion ; st, stomach. 
Thirty micra farther back, showing approximation of lateral caeca. 
X 130. Ipp, site for lower pyloric pouch ; It, lateral tooth. 
Ten micra beyond last. X 85. 
Thirty micra farther back, showing entrance of livers into pylorus, 
tips of pyloro-intestinal valves and beginnings of floor of intestine, 
x. m X 85. 
Transverse section, glaucothoe, showing vertical limb of green gland. 
X 85. glob , globulus ; ul, upper lip. 
Transverse section, sixth stage, through the pylorus. X 115. gang, 
ventral thoracic ganglia ; gg, canal from green gland to nephrosac ; 
upp , site of future upper pyloric pouch. 
Wareham adult, transverse section of abdomen, showing three liver 
tubules, the ventral wall of the nephrosac (gg), sexual duct (sd), chit¬ 
inous gut, caecum (ic), and upper part of flexor muscles (flex). X 180. 
Intestine of glaucothoe, longitudinal section through methoria; show¬ 
ing chitinous gut, acliitinous gut, and mesodermal sheath of gut, ms. 
X 525. 
Fig. 55-57. Development of stomach, somewhat diagrammatic, 
from plottings on profile paper. 
Stomach of fourth zoea, (cardiac part too short). X 184. Ic, 
entrance of lateral caecum into pylorus; eg, entrance of liver into 
pylorus. 
Stomach of glaucothoe, (cardiac part too short). X 138. 
Stomach of adult, x 43. lop, lower oesophageal plate ; nop, upper 
oesophageal pfate. 
Transverse section, glaucothoe, to show union of the pyloro-intes¬ 
tinal valves in the intestine and the partial occlusion of the lumen 
of the liver. X 180. 
