GALATHEOIDEA, Samouelle, 1819

Macpherson, Enrique, Jones, William & Segonzac, Michel, 2005, A new squat lobster family of Galatheoidea (Crustacea, Decapoda, Anomura) from the hydrothermal vents of the Pacific-Antarctic Ridge, Zoosystema 27 (4), pp. 709-723 : 721-722

KEY TO FAMILIES OF GALATHEOIDEA

The key provided by authors (see above) can be modified to accommodate Kiwaidae n. fam. as follows:

1. Weakly calcified lineage/sutures dividing carapace into discrete regions ...... Aeglidae

— Carapace without lineage/sutures .......................................................................... 2

2. Abdomen folded up against thorax; body crab-like; chelipeds moderately elongate, stout or flattened ................................................................................ Porcellanidae

— Abdomen folded up against itself (not against thorax); body shrimp-like; chelipeds greatly elongate, usually slender ............................................................................ 3

3. Sternal plate on last thoracic somite, between last legs, well developed; telson without a transverse suture and not folded beneath the preceding abdominal somites with the tailfan; third maxilliped with epipod ...................................... Galatheidae

— Sternal plate on last thoracic somite, between last legs, absent; telson with a transverse suture (sometimes difficult to see) and folded beneath the preceding abdominal somites with the tailfan; third maxilliped without epipod ...................................... 4

4. Insertion of fifth pereopod clearly visible ventrally; sternite between third maxillipeds small, not produced anteriorly; eyes well developed; usually with antennal scale ............................................................................................................ Chirostylidae

— Insertion of fifth pereopod not visible ventrally and situated beneath sternal plastron; sternite between third maxillipeds large, strongly produced anteriorly; eyes strongly reduced; antennal scale absent ...................................................... Kiwaidae n. fam.