| OCR Text |
Show 562 MR. R. I. POCOCK ON THE ARACHNIDA, [Dec. 4, protogastric and branchial regions in front marked with squamiform tubercles, which, running into definite series, are continued on to the inferior lateral surface of the carapace ; these tubercles become finer as they approach the bases of the legs, and disappear entirely towards the facial region; there is no distinct line, either of tubercles or denticulations, separating the superior from the inflected regions of the carapace, although close to the external margin of the orbit there is a conspicuous tooth, and separated from this by the distance of one millim. another smaller tooth; these teeth together with the external suborbital lobe constitute the upper margin of an almost smooth area, which is bounded below by a finely serrate transverse ridge, running outwards from the margin of the epistoma. Anterior half of the gastric region marked with a conspicuous median longitudinal groove, which terminates in front between the slightly prominent epigastric lobes ; front vertical, narrow, with raised margin and feebly convex anterior border ; orbits a little wider than long, with superior border externally finely serrate, internally smooth; external suborbital lobe obsoletely dentate and separated from the internal suborbital lobe by a space which is about half as great as the space separating the internal lobe from the front. Ext. maxillipedes. Inner margins scantily hairy ; exopodite shorter than the second (ischial) segment and concealed behind it; ischial segment nearly as wide as it is long ; the third (meral) segment depressed in the middle of its surface, thickly clothed with hair externally, and with its anterior margin excised ; the small apical segments densely hairy and not concealed behind the meral segment. Chelipedes externally beset with squamiform tubercles and scantily clothed with short black hairs; equal in size and identical in shape ; merus triangular; anterior border slightly concave ; posterior border convex, inferior border flat; antero-iuferior angle denticulate, postero-inferior angle and superior angle spinous; carpus posteriorly (externally) convex, above anteriorly (internally) armed with three sharp teeth ; propodus convex laterally, with superior and inferior borders slightly convex from before backwards; dactylus gently curved, when closed its teeth are almost in contact with those of the dactylar prolongation of the propodus. Legs beset with squamiform tubercles and distally somewhat thickly clothed with black hairs disposed in longitudinal series; superior angle of the meral segments slightly spinous distally ; pro-podal and dactylar segments furnished above and below with two series of coarse spines. Sternum and postabdomen closely punctured. Measurements (in millimetres):-Carapace-width 19, length 15^; width of front 4, of orbit 3^, length of orbit 2\ ; width of posterior margin of carapace 8 ; width of sternum \4\, length 11 (measured from its anterior apex to the base of the abdomen) ; length of abdomen 9 j ; length of chelipede- merus 6\, carpus 5, propodus (above) 3|-, dactylus 6; second leg-length of merus 11 \, carpus 6 ; propodus 6\, dactylus 8. |
