Caprellidae, Leach, 1814
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publication ID |
2201-4349 |
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persistent identifier |
https://treatment.plazi.org/id/8A2187F4-FFE6-A770-6B70-08A4645DAB3C |
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treatment provided by |
Felipe |
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scientific name |
Caprellidae |
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Key to the species of Caprellidae View in CoL from the Great Barrier Reef and adjacent localities
This key can be used without dissection but should be used in conjunction with Figs 3–6
1 Gills present on pereonites 2, 3 and 4 ............................................................................................ 2
—— Gills present on pereonites 3 and 4, absent on pereonite 2 ......................................................... 10
2 Pereopods 3 and 4 six-articulate .................................................................................................... 3
—— Pereopods 3 and 4 absent or reduced to a tiny article ................................................................... 6
3 Pereopod 5 four-articulate ............................................................................................................. 4
—— Pereopod 5 five-articulate .............................................................................................................. 5
4 Antenna 1 clearly shorter than the body. Pereopods 3 and 4 shorter than pereonites 3 and 4 combined. Propodus of the male gnathopod 2 with a triangular projection ........................................... Quadrisegmentum triangulum View in CoL ( Fig. 39)
—— Antenna 1 as long as body. Pereopods 3 and 4 longer than pereonites 3 and 4 combined. Propodus of the male gnathopod 2 without triangular projection ............................................ Quadrisegmentum lowryi View in CoL ( Figs 34–38)
5 Abdomen with a pair of appendages .................................. Metaproto novaehollandiae View in CoL ( Fig. 23)
—— Abdomen without appendages .......................................................... Pseudoproto fallax View in CoL ( Figs 33)
6 Pereopod 5 absent or reduced to one tiny article .......................................................................... 7
—— Pereopod 5 present, three to six-articulate .................................................................................... 8
7 Body smooth, without acute dorsal projections ............................ Hircella berentsae View in CoL ( Figs 7–11)
—— Body with acute dorsal projections ................................................... Hircella cornigera View in CoL ( Fig. 12)
8 Pereopods 3 and 4 reduced to one tiny article. Flagellum of antenna 1 2-articulate. Body geniculate .................................................... Perotripus keablei View in CoL ( Figs 24–27)
—— Pereopod 3 and 4 absent. Flagellum of antenna 1 more than 2- articulate. Body not geniculate ...................................................................................................... 9
9 Pereonite 3 with a pair of well-developed projections ...... Mayericaprella arimotoi View in CoL ( Figs 18–22)
—— Pereonite 3 without projections ................................................. Jigurru vailhoggett View in CoL ( Figs 13–17)
10 Pereopods 3 and 4 six-articulate ....................................................... Protogeton inflatus View in CoL ( Fig. 28)
—— Pereopods 3 and 4 absent or reduced to one or two articles ....................................................... 11
11 Pereopods 3 and 4 absent ............................................................................................................. 12
—— Pereopods 3 and 4 reduced to one or two articles ....................................................................... 14
12 Pereopod 5 3-articulate .................................................. Pseudoprellicana johnsoni View in CoL ( Figs 29–32)
—— Pereopod 5 six-articulate ............................................................................................................. 13
13 Head with a well-developed rostrum .................................................. Caprella penantis View in CoL ( Fig. 42)
—— Head with a small rostrum ............................................................... Caprella danilevskii View in CoL ( Fig. 41)
14 Pereonites 6 and 7 fused .......................................................... Metaprotella sandalensis View in CoL ( Fig. 44)
—— Pereonites 6 and 7 not fused ........................................................................................................ 15
15 Head and/or body with dorsal projections ................................................................................... 16
—— Head and body completely smooth dorsally ............................................................................... 18
16 Pereonite 4 2-articulate .............................................................. Aciconula australiensis View in CoL ( Fig. 40)
—— Pereonite 4 one-articulate ............................................................................................................ 17
17 Head with two acute projections. Body smooth ......................... Orthoprotella australis View in CoL ( Fig. 45)
—— Head with a single acute projection. Body with numerous rounded projections ............................................................................ Pseudaginella biscaynensis ( Fig. 54)
18 Pereopods 3 and 4 2-articulate ..................................................................................................... 19
—— Pereopods 3 and 4 one-articulate ................................................................................................. 20
19 Pereopods 3 and 4 minute, shorter than half length of gills .................. Paracaprella sp. ( Fig. 52)
—— Pereopods 3 and 4 longer than half length of gills ........................ Orthoprotella mayeri View in CoL ( Fig. 46)
20 Suture between head and pereonite 1 absent. Pereonite 2 with acute ventral projection between gnathopod 2 ................................ Hemiaegina minuta View in CoL ( Fig. 43)
—— Suture between head and pereonite 1 present. Pereonite 2 without acute ventral projection ................................................................................................................ 21
21 Peduncle of antenna 1 distinctly longer than half body length ............... Protella similis View in CoL ( Fig. 53)
—— Peduncle of antenna 1 about 1 ⁄ 3 body length ........................... Orthoprotella pearce View in CoL ( Figs 47–51)
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.