Key:  Suborder Flabellifera

Phylum Arthropoda
  Subphylum Crustacea
    Class Malacostraca
      Subclass Eumalacostraca
        Superorder Peracarida
          Order Isopoda
 

Taken primarily from  Kozloff, 1987, 1996 p. 332 (Copyright 1987, 1996, University of Washington Press.  Used in this web page by permission of University of Washington Press)
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Lower taxonomic level Main Page Alphabetic Index Systematic Index Glossary
1a  Pleon with 4 or 5 visible free pleonites, plus the pleotelson 2
1b Pleon with not more than 3 visible or partly free pleonites, plus the pleotelson (pleonite 1 is hidden beneath pereonite 7) 15
2a Uropod with both rami well developed, these usually lamellar in form (photo); not capable of rolling up into a ball; not boring in wood or kelps 5
2b Uropod with a rudimentary and more or less clawlike exopodite; capable of rolling up into a ball; boring in wood or kelps 3
3a
3b
4a
4b
5a None of the pereopods with large, hooklike dactyls for attachment to fishes (but there may be small hooks) (photo) 6
5b Pereopods 1-3, or all pereopods, with large, hooklike dactyls for attachment to fishes 9
6a Posterior border of telson fringed by about 26 short, simple setae; anterior edge of cephalon with an inconspicuous rostrum; on rocky shores, among mussels, etc. Cirolana harfordi
6b Posterior border of telson fringed by long, plumose setae; anterior edge of cephalon with an obvious spatulate rostrum; on sandy shores 7
7a Telson broadly rounded or almost truncate posteriorly Excirolana linguifrons
7b Telson somewhat angular posteriorly 8
8a Tip of angular portion of telson rather sharply pointed Excirolana kincaidi
8b Tip of angular portion of telson rounded Excirolana vancouverensis
9a
9b
10a
10b
11a
11b
12a
12b
13a
13b
14a
14b
15a
15b
16a
16b
17a
17b
18a
18b
19a
19b
20a
20b
21a
21b
22a
22b
23a
23b
24a
24b
25a
25b



Taxonomic Levels Represented in This Key:

  Excirolana kincaidi
 



Page created by Dave Cowles, 2007
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