50 
ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 
tubercles on the edge near the base ; fixed or lower claw margined on the under side ; the 
cutting edge with a very wide shallow tubercular sinus at the base ; at the end of the sinus, 
beyond the middle, a strong wide tooth, gradually sloping down to the end, which curves 
upwards. 
Hab Philippine Islands. 
4. GELASIMUS PORCELLANUS, Adams fy White. 
Ocidorum pedmculis perlongis. * 
Thorace parte frontali non coarctata ad basin ; parte posteriore longiore quam latera. 
Chelis digito inferiore ad finem incrassato, marginibus internis digitorum amborum tuberculis magnis 
quatuor inter parvos crenulos. 
Hab. Borneonem. 
Eye-pedicels very long. 
Frontal portion of carapace not narrowed at the base ; hind part of carapace much 
longer than the sides. 
Fore-legs with the lower claws thickened at the end, the inner margins of both claws with 
four larger tubercles amongst the small crenules. 
Hab. Borneo. 
5. GELASIMUS FORCIPATUS, Adams fy White. 
Thorace valde postice coarctato. 
Fronte, inter oculos, lobo dilatato, linea acnto-marginata, ab angulo canthi externo porrecta. 
Clield majore digitis sequalibus, dente prope medium, et prope extremitatem, lobo truncato. 
Hab. Borneonem. 
Carapace much narrowed behind. 
Front with a dilated lobe between the eyes ; from the outer orbital angle a sharp-edged 
line continued beyond the middle of carapace. 
Fore-legs with the larger claw nearly equal in size, with a tooth near the middle, and a 
truncated lobe towards the end ; a rather broad impressed line along the middle of each 
claw ; upper edge of palmar portion with a slight ridge ; outer side of palm covered with 
very slight tubercles. 
Hab. Borneo. 
VII. GONOPLACIDiE. 
The Macropthalmi inhabit muddy flats along the sea-shores, and, when disturbed, 
bury themselves quickly in the yielding soil, leaving the ends, however, of their long telescope- 
eyes above the surface. When taken, they are quite defenceless, not using their fore-legs as 
organs of aggression, or erecting and snapping them as do the Gelasimi. They are nume- 
rously distributed throughout the Philippine Archipelago and the islands in the China Sea, 
