Key:  Family Sabellidae

Phylum Annelida
 Class Polychaeta
  Subclass Palpata
    Order Canalipalpata
      Subrder Sabellida
 

Taken primarily from  Kozloff, 1987, 1996  p 161 (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  Main stems of all radioles dichotomously branched 1 or more times Schizobranchia insignis
1b Main stems of radioles not branched dichotomously (except in Eudistylia vancouveri, in which a few are branched) 2
2a Two of the more nearly dorsal radioles on both sides of the midline with large ocelli curled spirally around them near their tips Megalomma splendida
2b None of the radioles with conspicuous ocelli curled around them near their tips (but there may be small ocelli scattered over the radioles) (photo) 3
3a First 5 or 6 thoracic neuropodia with avicular uncini (these have short handles or no obvious handles) and with or without pickaxe-shaped setae 4
3b First 5 or 6 neuropodia with long-handled uncini and without pickaxe-shaped setae 15
4a All thoracic neuropodia with only avicular uncini 5
4b All thoracic neuropodia with both avicular uncini and pickaxe-shaped uncini 6
5a Thoracic notopodia with both limbate and spatulate setae; uncini with broad bases Laonome kroeyeri
5b Thoracic notopodia with only limbate or slightly spatulate setae; uncini almost S-shaped Sabellastarte sp
6a Lobes from which radioles originate spirally coiled 7
6b Lobes from which radioles originate semicircular 9
7a Notopodia of the first few abdominal segments longer than the tori (reduced parapodial lobes, with uncini) of the posterior thoracic segments 8
7b Notopodia of first few abdominal segments decidedly shorter than the tori of the posterior thoracic segments Eudistylia catharinae
8a Dorsal edges of both lobes from which radioles originate with a cleft Eudistylia polymorpha
8b Dorsal edge of both lobes from which radioles originate without a cleft Eudistylia vancouveri
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
26a
26b
27a
27b
28a
28b
29a
29b
30a
30b
31a
31b
32a
32b
33a
33b
34a
34b
35a
35b



Taxonomic Levels Represented in This Key:

  Eudistylia vancouveri
  Laonome kroeyeri



Page created by Dave Cowles, 2005
Edited by:  Dave Cowles, 2008