42 
ZOOLOGY OP THE VOYAGE OP H.M.S. SAMARANG. 
Abdomine (maris et feminse) articulis septem. 
Hab. Insulas Philippinas. 
Carapace rounded in front, produced at the latero-antenor angles, and contracted 
behind, upper surface smooth, marbled with a row of irregular transverse tubercles extending 
across the postfrontal portion ; latero-anterior margin with five large, prominent, dentiform 
lobes, the anterior three obtuse, the two posterior acute ; two curved, slightly elevated lines 
proceeding inwards from the latero-anterior angle. 
Front divided into four lobes, the two inner wide and obtuse, the two outer narrower 
and more prominent, upper surface slightly concave, outer angle of orbit acute. 
Fore-legs with two strong teeth on the inner and upper part of the fourth joint, the 
fifth joint slightly granulated externally, coarsely reticulated internally, and with a tubercular 
ridge at the base ; upper claw unarmed, under claw with five round depressed tubercles. 
Iiind-legs transversely rugose, fringed with short, stiff setae. 
Abdomen (both of male and female) seven-jointed, the former fringed with long, the 
latter with short, setae. 
Hab. Philippine Islands. 
<j. PANOPEUS CAYSTRUS, Adam fy White. (Tab. IX. Pig. 2.) 
Thorace subtrigonali, autice convexo, marginibus rotundatis lmeis impressis obsitis ; margme latero- 
anteriore serratulis tribus subdistantibus. 
Fronte, in medio, emarginata, supra sulcata, angulo externo canthi obtuso. 
Chelis Iambus, digito superiore arcuato inermi, digito inferiore tuberculis quatuor parvis acutis. 
Abdomine (feminse) articulis septem. 
Hab. Maria Orientalia. 
Carapace subtrigonal, rounded in front and at the sides, surface smooth, marked with 
faintly impressed lines ; latero-anterior margin with three rather distant shaip seriations. 
Front emarginate in the middle, without lobes, a trifid groove on the upper suiface , 
outer angle of orbit rather obtuse. 
Fore-legs smooth, upper claw strong, arched, unarmed ; lower claw with three or four 
small acute tubercles. 
Hind-legs smooth, fringed on the last and penultimate joints with long hairs. 
Abdomen (of female) seven-jointed, the second joint narrower than the rest, fringed with 
short stiff setae. 
Hab. Eastern Seas. 
3. PANOPEUS EORMIO, Adams 8> White. (Tab. IX. Fig. 1.) 
Thorace latiore quam longiore, lateribus rotundatis, linea valde distincta ab angulo latero-anteriore 
projects, ; margme latero-anteriore lobis quatuor longis rotundatis, dente parvo ad angulum latero-antenorem. 
Fronte lobis quinque subobsoletis, supra sulcata, angulo externo canthi fissura parva. 
