THE TET'TIGTD^ OF CEYLON. 
123 
6 .—Gavialidium crocodilus , Sauss. 
Plate II., figs. 11-11&. 
Body strongly rugose, reticulate, granulate, cribriform. Head 
small, rugose granulate. Eyes small, globose little exserted, pos¬ 
terior ocelli conspicuous in profile little before the anterior inferior 
angle of the eye. Vertex nearly horizontal, strongly wider than 
eye, not appreciably narrowed, not advanced quite so far as the 
eyes, the front margin truncate, the middle imperfectly carinate 
outwardly on each side compresso-elevated acute, little higher 
than the eyes, occiput rugose. Face retreating, the facial frontal 
costa above between the eyes reduced obsolete not advanced, 
in profile between the antennae strongly roundly protuberant, 
the rami rather widely separated, divergent forward substraight, 
carina below the median ocellus obliterated.' Antennae filiform 
very slender, articles elongate, inserted below the eyes a distance 
equal to half their height, on a vertical plane little in advance of 
the anterior border of eyes. Pronotum truncate in front but the 
dorsal front margin subtrituberculate, strongly prolonged back¬ 
ward attenuate acute, elevated at the apex ; dorsum strongly 
flattened above, rugose, reticulate cribriform excoriate ; median 
carina of pronotum moderately distinct, but interrupted between 
the shoulders by a fossa ; just before the fossa little compresso- 
elevated crenulate ; the little crest cut by an excavation dividing 
off a small, but distinct crenate tubercle anteriorly; just behind the 
dorsal front margin reduced, crenulate, posteriorly behind the 
shoulders very slightly unevenly elevated, rugose-sinuate granu¬ 
late, on the apical process subobsolete ; lateral carinse elevated, pos¬ 
teriorly convergent nearly straight, crenulate ; the humeral angles 
armed with a small denticle and another minute denticle before 
the shoulders ; midway between the anterior border of pronotum 
and humeral angle incised by a very deep vertical sulcus ; prozonal 
carinse short conspicuous crenulate, little subdivergent backwards, 
in front terminating in little acute tubercle ; humeral angles of 
pronotum strongly obtuse little outwardly produced ; dorsum an¬ 
teriorly on either side of small median crest fossulate, between 
the shoulders provided with little reticulate crenate protuberances; 
two more lightly elevated rough reticulations appear posteriorly on 
each side between the carinse ; lateral lobes with the anterior 
angle dentate, the inferior margin outwardly widely and some¬ 
what roundly laminate crenate, tricuspidate or armed with two 
distinct teeth, rarely with a small one anteriorly, the posterior 
angle acute subdentate, behind suboblique truncate ; infra scapular 
area rather high, the humero-apical carina obscured, sides of 
apical process high, vertically flattened precipitous ; elytral sinus 
