Download PDF as one large file - AToL Decapoda

330 Family Diogenidae
Family Diogenidae
Key to genera and species
[Adapted from Provenzano, 1959, with additions]
1. Abdomen secondarily straightened for housing in rock cavities or sponges; chelae
and distal segments of walking legs forming opercular face Cancellus
Abdomen coiled for housing in gastropod shells; chelae and distal segments of
walking legs not forming opercular face , . 2
2. (1) Paired appendages present on first two abdominal somites of male and on first
somite only of female . Paguristes
No paired appendages on anterior abdominal somites of either sex 3
3. (2) Chelipeds similar and subequal; fingers moving horizontally 4
Chelipeds dissimilar and unequal; fingers moving obliquely or nearly vertically ... 5
4. (3) Finger tips spooned; antennal flagellum long and not hairy Clibanarius
Finger tips acuminate; antennal flagell um short and very hairy
Isocheles wurdemanni
5. (3) Chelipeds not markedly unequal, right slightly larger than left.
Petrochirus diogenes
Chelipeds markedly unequal, left much larger than right 6
6. (5) Major palm tuberculate, with appressed setae ,. Dardanus
Major palm smooth, without hairs Calcinus tibicen