Description of Male

Differing from T. cooki in the following details.

Antennae. First: Flagellum of 6 segments, 1st 2 or 3 fused. Peduncle segments successively longer and narrower, a few setae marginally and superiorly on flagellum segments. Second: Flagellum stout, of about 18 segments, 1st 4 or 5 fused. Peduncle 5th segment slightly longer than 4th, segments successively narrower, small spines on margins.

Mouthparts. First Maxillae: Palp minute, of one segment with sharply narrowed tip, a few bristles on margin. Maxilliped : Outer plate reaches ½ along carpus, outer margin has about 6 setulose spines distally, row of plain spines set along and in from inner margin. Basos to merus segments have a few short stout spines on outer margins. Carpus as long as merus, outer distal angle has about 3 spines, inner margin forms slight flange with row of short spines along ⅔. Propod almost globular, row of short strong spines on inner margin; about 6 strong spines on one side ⅔ along outer margin, marking off very rudimentary dactylos.

Gnathopods. First: Sideplate subtriangular. Basos posterior margin convex, short spines on margins and surface. Ischium subsquare, about ⅓ basos length. Merus subtriangular, more than ½ basos length, shorter than carpus. Carpus subtriangular, posterior margin produced distally to small pellucid scabrous process with spines each side of base. Propod subrectangular, widening slightly distally, greatest width about ½ length anterior margin; as long as merus; margins and surface strongly spined; posterodistal angle produced in scabrous pellucid lobe to transverse palm which has row of 3 or 4 strong spines medially. Long tapering dactylos overlaps palm, inner margin has a short stout spine medially. Second. Sideplate shallow, rounding to excavate posterior margin. Basos narrowing sharply proximally, width ⅓ length, posterior margin convex. Ischium subsquare, a few small spines distally. Merus slightly smaller, posterior margin spined, anterior margin contiguous with posterior margin of smaller triangular non-spined carpus. Propod greatly expanded, as long as basos plus ischium, width about ½ length, margins more or less parallel; oblique spinulose palm has large median tooth, large concavity between this tooth and small sharp defining tooth; defining tooth has a few small spines at base and on outer margin. Stout curved dactylos does not narrow greatly, has stout tooth ⅓ along inner margin, which fits into small depression between hinge and median tooth of palm; dactylos slightly overlaps palm.

Peraeopods. First: Sideplate shallow, much wider than deep; anterior margin rounds to spined ventral margin. Basos width ½ length. Ischium subrectangular, ⅓ basos length. Merus proximally narrowing, about ⅔ basos length, width not ½ length; carpus more than ½ merus length; strong spines on margins especially posterior. Propod longer, narrowing slightly to strong curved tapering dactylos which has strong short spins on inner margins. Second: Sideplate less wide, posterodistal angle less sharp, otherwise like Pr. 1. Third: Sideplate posterior lobe ventrally spined. Basos almost as wide as long, anterior margin has short, stout spines;