Triangular similar to that of large the chela

Triangular rostrum in length short
and variable, not reaching more than middle of visible part of first antennular
article ; rostral carina low, rounded, extending past posterior end of orbital
hoods; orbitorostral grooves shallow, at times non-existent. Second antennular
article almost twice as long as broad and 1.5 times as short setiferous bristles; stylocerite broad
with  tip acute which  reaches up to the end of first
antennular article and   on lateral margins short stiff setiferous
bristles. The outer margins of scaphocerite slightly convex, broad squamous
portion, equals lateral tooth, in some cases longer. Carpocerite and antennular peduncle of same length;
unarmed basicerite ; large chela big and  heavy, 2.3
times as long as broad,superior saddle broad and shallow ;the
proximal and distal shoulders gently round in shape;
shallow medial palmar depression ; triangular  in shape with the  apex reaching to middle of palm, palmar
depression  in the lateral side a little
deeper
which  is quadrangular and reaches to the  linea impressa; rounded  inferior
shoulder at right angles to margin; the inferior notch that continues on the
lateral area in a  slightlly triangular
depression, does not  appear on medial face. Inferior margin carrying on
medial side a longitudinal groove arising in proximal third of palm and extending
almost to inferior shoulder where it turns upward; well dveloped plunger; merus a little  longer than broad,  and is unarmed; small chela sexually
dimorphic: male having the  typical
balaeniceps dactylus.

 

 

 

 

     Chela  of male 4.5 times as long as broad, in length fingers
equals to palm; sculpturing seen  similar
to
that of large the  chela but much less pronounced. Crest of hairs
on margins of dactylus cross superior surface proximal to curved acute tip; flattened area
conspicuously triangular; proximally pollex bearing fringe of setae; merus 3 times as
long as broad and unarmed; chela of  female
5.3 times as long as wide, fingers exceeds 1.2 times length of palm.; palm with
slight
traces of superior saddle and inferior shoulder; merus
of female similar to that of male; second leg with ratio of carpal articles:
10:(4-8):2:2:3. third leg Ischium often with no spine; merus inermous, 5 times as long
as broad; carpus 0.5 as long as merus with superior margin projecting but
rounded; length of propodus 0.8 as long as merus and have 7 stout spines on inferior margin and a distal
pair ;
propodus also bearing tufts of short stiff setae in
rows on either face near row of spines and a third row near superior margin on medial
face; dactylus 0.4 as long as propodus, 
slightly curved  and spatulate; bears tufts of setae similar to propodus near
superior and inferior margins; broad telson, 1.3
times as broad anteriorly as posterioriy and 1.4 times as long as
posterior margin is broad; slightly convex lateral
margins, strongly convex posterior margins, small superior and posterolateral spines.

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