Download PDF as one large file - AToL Decapoda

296 Family Callianassidae
3. (2) Projection on ischium denticulate, approximately as long as remainder of segment's
width; inferior margin of merus inconspicuously serrate, without elongate
projection Callichirus islagrande (male)
Projection not denticulate, length approximately 0.2 times remainder of segment's
width; merus with proximal inferior bifurcate projection, remainder of margin with
several strong denticles C. jamaicense
4. (2) Ischium with distinct inferior spines .5
Ischium lacking distinct inferior spines 8
5. (4) Merus and palm with two or three spines along superior margin
...C acanthochirus
Merus and palm lacking superior spines 6
6. (5) Inferior margin of merus entire C. marginata
Inferior margin of merus spinous or serrate. 7
7. (6) Merus with 3-5 spines on proximal half of inferior margin, remainder of margin
denticulate; ischium with numerous (7-9) spines on inferior margin; cutting edge of
dactylusentire .. C. longiventris
Merus with 7-12 spines plus acute serrations; ischium with 3-4 spines distally, acute
serrations proximally; cutting edge of dactylus with median quadrate notch (male)
or entire (female) C. rathbunae
8. (4) Inferior margin of merus entire 9
Inferior margin of merus serrate, spinous, or with some sort of proximal inferior
projection , 10
9. (8) Propodal finger with acute triangular tooth proximally; carpus less than 1.7 times
length of palm... Callichirus major (female)
Propodal finger serrate but lacking well-developed tooth; carpus more than 1.7 times
length of palm Callichirus islagrande (female)
10. (8) Proximal inferior corner of merus with spinous or robust spine like projection 11
Proximal inferior projection, if present, quadrate or forming hook, not spinelike.. 12
11. (10) Lateral surface of palm with 2-3 spines just proximal to base of propodal finger;
projection on merus strong, bifurcate C. guassutinga
Surface of palm lacking spines; distally curving spinous projection on merus,
remainder of margin weakly serrate Gourretia latispina