Description of Male

Length, 16 mm; depth, 3¾ mm, width, 3 mm. Colour in spirit, white. Eyes round, black, apart, ½ length of head Like T. telluris but distinguished as follows:

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Antennae. First: Length 1/34 mm, reaching past 4th peduncle segment of antennae 2, flagellum of 7 segments, segments wider than long, distal angles have groups of 2 or more short spines. Peduncle 2nd segment slightly longer than 3rd, slightly more than ½ length 1st, groups of seta-tipped spines on distal angles, 2nd and 3rd have 1 spine medially on inferior margin, 2 or more on superior. Second: Length 3¾ mm; flagellum of 20 segments; peduncle 3rd segment as long as 4th; strong seta-tipped spines distally on margins, 4th spined superiorlv also; 5th has strongly spined margins, a few spines distally.

Mouthparts. Maxilliped: Merus has several marginal spines; carpus has long spine on inner distal angle concluding row of smaller spines on inner margin, spine reaches almost to end of propod.

Gnathopods. First: Like T. telluris but more strongly spined, particularly basos margins and posterior margins of ischium and merus; dactylos reaches end of propod. Second: Sideplate deeper than wide, subrectangular. excavate posteriorly and high up, a number of fine spines on ventral surface Gills slender, terminally Y-shaped. Basos slightly concave, width ¼ length, numerous fine spines on posterior margin and surface; anterior margin and small field alongside have similar spines Ischium subsquare, slightly narrower than basos. posterior margin and distal angle have fine spines, anterior margins form cup distally to receive propod. Merus as long, slightly narrower, short spines on posterior margin, a few very fine spines on surface; posterodistal angle rounded but sharp; anterior margin contiguous with small cup-shaped carpus on to which expanded ovate propod fits Propod slightly longer than basos, width about ¾ length; anterior margin convex, posterior not ½ length anterior, a few minute spines where dactylos impinges; produced distally in large projecting angle which defines palm, a small tooth on inner surface forming fork between which dactylos fits. Outer projection extends slightly past dactylos inner margin but dactylos tip extends over posterior propod margin. A further long narrow marginally-spined tooth extends distally about ⅔ along palm from posterior margin; between it and fork the palm is raised in shallow convexity with both margins spined. Dactylos long, curved, slightly thickened near innermost tooth of palm.

Peraeopods. First: Sideplate subrectangular, deeper than wide, excavate posteriorly and high up. Basos width ⅓ length, many small marginal spines. Ischium has about 3 spines posteriorly; merus has a few on convex posterior margin, anterior has a field of numerous spines. Carpus narrower, ¾ merus length, similarly spined, a few of the anterior spines very long. Propod as long, narrower, strongly spined. Dactylos tapering, more than ½ propod length Second. Sideplate deeper than wide, trapezoid; segments shorter and broader than in Pr. 1; dactylos has spur on inner margin. Third: Sideplate anterior lobe spined ventrally, posterior lobe ventrally and posteriorly Basos ovate, as wide as long, numerous stout spines on margins. Ischium wider than deep, subrectangular, anterior margin and distal angle spined; merus nearly as wide distally as long, posterior margin convex; margins have numerous stout long spines; the largest more than ½ carpus length. Carpus similarly spined, spines on anterior margin especially strong. Propod as long, not ½ carpus width, strongly spined. Dactylos ½ propod length, relatively straight. Fourth: Basos has single spines on posterior margin, groups on anterior, some on surface, ischium anterior margin has a few spines, other segments longer and narrower than in Pr. 3 but similarly spined. Fifth: Basos wider than long, widest ventrally where posterior margin forms broadly rounded downward projection past ischium.