| 1a |
Main stems of all radiolesdichotomously
branched 1 or more times (photo) |
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
neuropodiawith
only avicular
uncini |
5 |
| 4b |
All thoracic
neuropodia
with both avicular
uncini and pickaxe-shaped uncini |
6 |
| 5a |
Thoracic
notopodia
with both limbate
and
spatulatesetae;
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 |
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| 9b |
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| 10a |
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| 10b |
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| 11a |
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| 11b |
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| 12a |
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| 12b |
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| 13a |
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| 13b |
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| 14a |
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| 14b |
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| 15a |
Abdominal
uncini
in rows that nearly encircle the segments; proximal
portions of radioles
connected by a membrane (photo) |
Myxicola
infundibulum |
| 15b |
Abdominal
uncini
in short rows; radioles
connected by a membrane in some species, not in others |
16 |
| 16a |
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| 16b |
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| 17a |
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| 17b |
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| 18a |
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| 18b |
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| 19a |
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| 19b |
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| 20a |
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| 20b |
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| 21a |
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| 21b |
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| 22a |
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| 22b |
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| 23a |
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| 23b |
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| 24a |
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| 24b |
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| 25a |
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| 25b |
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| 26a |
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| 26b |
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| 27a |
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| 27b |
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| 28a |
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| 28b |
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| 29a |
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| 29b |
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| 30a |
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| 30b |
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| 31a |
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| 31b |
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| 32a |
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| 32b |
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| 33a |
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| 33b |
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| 34a |
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| 34b |
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| 35a |
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| 35b |
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