Pandalidae, Haworth, 1825

Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, Zootaxa 3371, pp. 1-307 : 99

Key to species of family Pandalidae

1. Antennules twice length of carapace. Merus of third maxillipeds, ischium of first pereopods with laminate expansion fringed with long hairs........................................................................................ 2

– Antennules not longer than carapace. Merus of third maxillipeds, ischium of first pereopods without laminate expansion fringed with long hairs................................................................................. 3

2. Rostrum without teeth on distal half of rostrum. Occurs from Washington state south................ Pandalopsis ampla

– Rostrum with teeth on distal half of rostrum. Occurs from Bering Sea to Oregon .................... Pandalopsis dispar

3. Third maxilliped with exopod. Known only from south of Point Conception...................................... 4

– Third maxilliped without exopod. North or south of Point Conception........................................... 5

4. Rostrum with only two small basal dorsal spines, second pereopods equal, with 15–18 carpal articles. Pelagic at 500–4000 m ............................................................................... Plesionika sanctaecatalinae

– Rostrum with 4 dorsal teeth and 5–6 dorsal spines, second pereopods very unequal in length, with about 100 left and 20 right carpal articles. Benthic, 55–258 m ........................................................ Plesionika mexicana

5. Dorsal spines reaching behind middle of carapace. Intertidal zone to continental shelf............................... 6

– Dorsal spines not reaching behind middle of carapace. Subtidal areas to continental slopes........................... 7

6. Scaphocerite of moderate width. No patch of pubescence on carapace, rostrum usually with trifid apex...... Pandalusdanae

– Scaphocerite narrow. Patch of pubescence on carapace, rostrum usually with bifid apex............... Pandalusstenolepis

7. Abdominal somite 6 about 1.5 times as long as wide. Carapace pubescent. With horizontal white stripes on carapace in life...................................................................................... Pandalus platyceros

– Abdominal somite 6 about 3 times as long as wide. Carapace smooth and shining. Without horizontal white stripes on carapace in life............................................................................................... 8

8. Rostrum with spines on distal half of superior margin............................................ Pandalusjordani

– Rostrum without spines on distal half of superior margin......................................... Pandalustridens