Key:  Family Terebellidae

Phylum Annelida
 Class Polychaeta
  Order Terebellida

Taken primarily from  Kozloff, 1987, 1996 p. 159 (Copyright 1987, 1996, University of Washington Press.  Used in this web page by permission of University of Washington Press)
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1a  Peristomium with a large, papillated, proboscislike extension Artacama conifera
1b Peristomium without a proboscislike extension 2
2a Uncini, if present in the thoracic region, in a single row (but this row may form a loop) 3
2b Uncini in some thoracic segments (especially those in the posterior half of the thorax) in a double row, interlocking in much the same way as the teeth of a zipper 11
3a With 2 or 3 pairs of slender, unbranched gills 4
3b Without gills 9
4a Capillarynotosetae beginning on the first gill-bearing segment Streblosoma bairdi
4b Capillarynotosetae beginning on the second or third gill-bearing segment 5
5a With 2 pairs of gills 6
5b With 3 pairs of gills 7
6a
6b
7a Rows of uncini, beginning with segment 8, curved to form a nearly closed ellipse Thelepus crispus
7b Rows of uncini, on all segments that have them, nearly straight 8
8a Notosetae absent from about the last 40 segments; gill filaments not obviously coiled Thelepus setosus
8b Notosetae absent from only about the last 10 segments; gill filaments usually coiled Thelepus japonicus
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:

  Thelepus crispus
  Thelepus japonicus
  Thelepus setosus



Page created by Dave Cowles, 2005
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