Download PDF as one large file - AToL Decapoda

Family Ocypodidae 709
9. (8) Proximal ridge at movable finger's base clearly diverging upward from adjacent
groove, often either with angle ventrally or with curve throughout; center of palm
always rough with tubercles of moderate size, not fine granules; tip of immovable
finger never with outer subdistal crest but always with enlarged, subdistal tubercle
with posterior part of edge clearly raised U. burgersi
Proximal ridge at movable finger's base straight, closely paralleling adjacent furrow
or {minax only) in upper portion minutely diverging from it; center of palm various;
tip of immovable finger always with outer, subdistal crest at least indicated and
never with enlarged, subdistal tubercle in gape's median row; meri of walking legs
various; female gonopore various 10
10. (9) Center of palm almost always finely granulate, usually appearing almost smooth,
although exceptions occur; subdistal crest on outer surface of immovable finger
almost always strongly developed, highest tubercle usually proximal with several
others diminishing regularly toward tip; walking meri broad, dorsal margins of
third and fourth clearly convex at least on one side in both sexes; apex of oblique
tuberculate ridge on palm high, tubercles almost always continued little or not at all
upward around carpal cavity; eyebrow only moderately inclined and usually
narrower than smaller dimension of thickness of adjacent, depressed eyestalk;
female gonopore with tubercle U. rapax
Center of palm almost always with large, sometimes flat tubercles; apex of oblique
ridge low, often lower than its median section, continued or not upward around
carpal cavity; crest on outer surface of immovable finger highly variable within each
species in strength and form; walking meri slender in males; dorsal margins of
fourth scarcely or not at all convex, broader in females; eyebrows various; female
gonopore with or without small tubercle 11
11. (10) Front extremely broad, clearly more than one-third carapace breadth in both sexes;
eyebrow wider than smaller dimension of adjacent, depressed eyestalk; oblique
ridge inside palm not continued upward around carpal cavity; female carapace
dorsally with antero-lateral patches of conspicuous tubercles; crab size large; in
fresh male specimens joints of major cheliped bordered by red patches .. U. minax
Front narrower, less than one-third carapace breadth in males, about one-third in
females; eyebrow almost always strongly inclined, almost vertical, narrower in
males than smaller dimension of adjacent, depressed eyestalk, in females subequal
to it; front always with distal margin's inner edge normally rounded; female
gonopore with posterior edge slightly raised and sometimes with minute tubercle; in
fresh male specimens joints of major cheliped bordered by yellow or yellow-brown
U. pugnax