CRUSTACEA. 
47 
Thorax suborbicularis, postice coarctatus, margine latero-anteriore spinis acutis conicis prorsum 
inclinatis. 
From semicircularis, in lobos quinque equales divisa j canthi margine superiore subfisso postice, dentc 
magno, conico, curvato. 
Choice long®, spiniferee, pedes posteriores graciles, compress®, pari quinto valde dilatato. 
Abdomen (maris) triangulare, articulis quinque ; femina adhuc latet. 
External pedipalps with the second joint rather more slender towards the tip (than in 
Lupa forceps), the third joint considerably smaller. 
Carapace suborbicular, contracted posteriorly, latero-anterior margin with sharp conical 
spines directed forwards. 
Front divided into five equal dentiform lobes, orbit with the upper margin slightly 
notched, a large curved conical tooth behind it. 
Fore-legs long and spiniferous. 
Hind-legs slender and compressed, the fifth pair greatly dilated. 
Abdomen (of male) triangular, five-jointed. 
1. LUPOCYCLUS ROTUND ATUS, Adams $ White. (Tab. XII. Fig. 4.) 
Thorace minutissime punctulato, tuberculis parvis aggregatis lineisque granulosis adsperso, marginibus 
latero-anterioribus spinis quinque magnis, spinis quinque parvis interpositis ; regionibus lateralibus 
pallidulo-luteo, corneo-fusco discoloratis ; in medio thoracis taenia lata rubra. 
II ab. Balambangan. 
Carapace subcircular, slightly narrowed behind, surface irregular, very finely punctulated, 
and covered with isolated clusters of minute tubercles and transverse granulated lines ; the 
latero-anterior margin with five large, sharp, conical spines directed forwards, and an equal 
number of small intermediate spines. 
Front semicircular, divided into five equal dentiform lobes ; orbit with a slight notch at 
the upper margin, and bounded behind by a strong, curved, conical tooth, directed forwards. 
Fore-legs with the third joint furnished with a row of five sharp, curved, conical spines 
on the anterior margin, numerous transverse ridges of small tubercles on the upper surface, 
and a longitudinal granulated line ending externally in a sharp spine ; fourth joint with a 
strong spine on the upper edge ; upper surface of fifth joint with a large spine at the base, 
and two ridges each ending anteriorly in a prominent spine ; claws long, slender, grooved, 
and slightly curved. 
Hind-legs slender, compressed, finely punctulated and granulated, the last pair with all 
the joints horizontally flattened, the last and penultimate joint greatly dilated and fringed 
with close-set stiff hairs. 
Abdomen (of male) triangular, five-jointed. 
Hab. Island of Balambangan, north end of Borneo. 
