Acetes
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https://doi.org/ 10.1111/zoj.12371 |
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https://treatment.plazi.org/id/F51387D8-1629-934C-FDF9-E60CB6CAF8CB |
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Marcus |
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scientific name |
Acetes |
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KEY TO SPECIES OF THE GENUS ACETES
1. Rostrum without dorsal teeth ................................................ Acetes binghami Burkenroad, 1934 ( Fig. 4E, F View Figure 4 )
- Rostrum with one to two dorsal teeth................................................................................................... 2
2. Rostrum with a single dorsal tooth.......................................................................................................3
- Rostrum with two dorsal teeth ............................................................................................................ 4
3. Fourth pereopod (three or five segments) present (but reduced) .................................................................. ................................................................................ Acetes petrunkevitchi ( Burkenroad, 1945) ( Fig. 4A, B View Figure 4 )
- Fourth pereopod absent......................................................... Acetes americanus Ortmann, 1893 ( Fig. 4C, D View Figure 4 )
4. No tooth on distal inner margin of coxa of third pereopod in female; pars astringens of petasma vestigial ......... ............................................................................................ Acetes natalensis Barnard, 1955 ( Fig. 7E, F View Figure 7 )
- Tooth present on distal inner margin of coxa of third pereopod in female; pars astringens of petasma absent ( Fig. 5B View Figure 5 ) or well developed ( Fig. 5D View Figure 5 )..................................................................................................................5
5. Apex of telson triangular. In male, clasping organ with a single developed tubercle opposed to scattered pairs of strong, specialized setae, which are positioned without large prominence ( Fig. 5E View Figure 5 )........................................6
- Apex of telson rounded or truncated. In male, clasping organ with two developed tubercles ( Fig. 5B View Figure 5 ) or with one tubercle opposed to a large prominence which is lacking scattered pairs of strong, specialized setae ( Fig. 7A View Figure 7 )..... .................................................................................................................................................... 10
6. In female, basis of third pereopod with acute projection on inner margin. In male, pars astringens absent, no enlarged claws in addition to ordinary claws......................... Acetes indicus H. Milne Edwards, 1830 ( Fig. 5E, F View Figure 5 ).
- In female, no acute projection on inner margin of third pereopod. In male, pars astringens present, enlarged claws in addition to ordinary claws present ( Fig. 6B View Figure 6 ) ....................................................................................... 7
7. Bases of first pleopods with strong, curved tooth between them.................................................................8
- No strong, curved tooth between bases of first pleopods ........................................................................... 9
8. First segment of antennular peduncle no longer than second and third segments combined. In female, basis of third pereopod with blunt projection on distal inner margin. In male, three to five enlarged claws along outer margin................................................................................... Acetes intermedius Omori, 1975 ( Fig. 6A, B View Figure 6 )
- First segment of antennular peduncle longer than second and third segments combined. In female, no projection on distal inner margin of basis of third pereopod. In male, one to two enlarged claws along outer margin ......... ............................................................................................... Acetes erythraeus Nobili, 1905 ( Fig. 5C, D View Figure 5 )
9. In female, basis of third pereopod with small projection on distal inner margin. In male, one to two enlarged claws along outer margin....................................................................... Acetes sibogae Hansen, 1919 ( Fig. 8C, D View Figure 8 )
– In female, no projection on distal inner margin of basis of third pereopod. In male, three enlarged claws along outer margin.............................................................................. Acetes vulgaris Hansen, 1919 ( Fig. 8E, F View Figure 8 )
10.In female, third thoracic segment with a pair of barbs (visible in lateral view) just behind posterior teeth of coxa. In male, clasping organ with a single developed tubercle ( Fig. 7A View Figure 7 ); petasma with pars astringens ( Fig. 7A View Figure 7 )........ .................................................................................................................................................... 11
- In female, no barb (or not visible in lateral view) just behind posterior teeth of coxa on third thoracic segment. In male, clasping organ with two developed tubercles ( Fig. 5A View Figure 5 ); petasma without pars astringens ( Fig. 5B View Figure 5 )......... 12
11. In female, coxa of third pereopod with small blunt tooth. In male, petasma without capitulum ........................ ................................................................................................. Acetes marinus Omori, 1975 ( Fig. 7A, B View Figure 7 )
- In female, coxa of third pereopod with large acute tooth. In male, petasma with rudimentary capitulum ........... ....................................................................................... Acetes paraguayensis Hansen, 1919 ( Fig. 7C, D View Figure 7 )
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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