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362 Family Paguridae
Genus Iridopagurus De Saint Laurent-Dechance, 1966
Key to species
[From McLaughlin, personal communication]
1. Distodorsal margin of merus of left cheliped with strong spine ...../. iris
Distodorsal margin of fnerus of left cheliped glabrous ... 2
2. (1) Chelipeds with dense patch of setae on dorsolateral distal surface of palm and
proximal surface of immovable finger /. caribbensis
Chelipeds without dense patch of setae on dorsolateral distal surface of palm and
immovable finger 3
3. (2) Right chela with row of spines on dorsomesial margin and dorsal midline
proximally; 4th pereopod with preungual process /. globulus
Right chela with numerous irregular rows of spines on dorsal surface; 4th pereopod
without preungual process 4
4. (3) Chelae with palms ovate, dorsal surfaces with reticulated color pattern; dactyli of
2nd and 3rd pereopods with 3-8 corneous spinules on inferior margins
/. reticulatus
Chelae with palms subrectangular, dorsal surfaces with colored band across fingers
proximally; dactyli of 2nd and 3rd pereopods with 8-12 corneous spinules on
inferior margins /. violaceus
Genus Pagurus Fabricius, 1775
Key to species
[Based on Lematre et al., 1982, and Williams, 1984]
1. Ocular acicles with several terminal submarginal or marginal spines 2
Ocular acicles with single terminal submarginal spine (rarely 1 or 2 accessory mesial
marginal spinules) 4
2. (1) Chelae with short setae forming dense mat-like covering on dorsal surfaces.
..P. provenzanoi
Chelae glabrous or with short to long setae, but setae not forming dense mat-like
covering on dorsal surfaces 3