Elaphoidella Chappuis 1929
Creators: name: Watiroyram, Santi
name: Sanoamuang, La-Orsri
name: Brancelj, Anton
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Maxillopoda
Harpacticoida
Canthocamptidae
Elaphoidella

description: Key to species of Elaphoidella Chappuis, 1929 from SEA based on females
1 P5 baseoendopod with 3 setae................................................................... E. trisaetosa
- P5 baseoendopod with 4 setae............................................................................2
2 P5 Exp with 2–3 setae..................................................................................3
- P5 Exp with 4–6 setae................................................................................. 6
3 P5 Exp with 2 setae.......................................................................... E. margaritae
- P5 Exp with 3 setae....................................................................................4
4 P5 with less developed beseoendopod; shorter than half of Exp length................................ E. superpedalis
- P5 with well developed beseoendopod; longer than half of Exp length............................................5
5 Inner margin of caudal ramus with thorn-like seta.................................................... E. cornuta
- Inner margin of caudal ramus with normal seta..................................................... E. javaensis
6 P1 Endp 2-segmented..................................................................................7
- P1 Endp 3-segmented.................................................................................10
7 P5 Exp with 5 setae........................................................................ E. bidens bidens
- P5 Exp with 4 setae....................................................................................8
8 Posterior margin of urosomites smooth........................................................ E. sanoamuangae
- Posterior margin of urosomites serrate.....................................................................9
9 P4 Endp absent........................................................................... E. thailandensis
- P4 Endp present................................................................................ E. elegans
10 Inner seta on P4 Endp-1 absent.......................................................................... 11
- Inner seta on P4 Endp-1 present.........................................................................21
11 P5 Exp with 5 setae...................................................................................12
- P5 Exp with 4 setae...................................................................................13
12 Posterior margin of urosomites smooth.......................................................... E. jaesornensis
- Posterior margin of urosomites serrate....................................................... E. bidens coronata
13 Endopod-2 of P4 with 2–3 setae and spines................................................................14
- Endopod-2 of P4 with 4 setae and/or spines................................................................17
14 Inner seta on P2 Endp-1 present.................................................................... E. labani
- Inner seta on P2 Endp-1 absent..........................................................................15
15 P3 Endp-2 with 4 setae....................................................................... E. vietnamica
- P3 Endp-2 with 5 setae................................................................................16
16 Posterior margin of urosomites smooth............................................................ E. malayica
- Posterior margin of urosomites serrate......................................................... E. sewelli s. str.
17 Posterior margin of urosomites smooth......................................................... E. namnaoensis
- Posterior margin of urosomites serrate....................................................................18
18 Inner seta on P2 Endp-1 absent.......................................................... E. paraaffinis sp. nov.
- Inner seta on P2 Endp-1 present.........................................................................19
19 Inner seta on P3 Endp-1 absent............................................................. E. ligorae sp. nov.
- Inner seta on P3 Endp-1 present.........................................................................20
20 P3 Endp-2 with 3 setae.................................................................... E. bromeliaecola
- P3 Endp-2 with 5 setae...................................................................... E. thienemanni
21 Posterior margin of urosomites smooth....................................................................22
- Posterior margin of urosomites serrate....................................................................25
22 P5 with well developed beseoendopod; about a half of Exp length...................................... E. cuspidata
- P5 with less developed beseoendopod; shorter than half of Exp length...........................................23
23 P5 Exp as long as wide........................................................................ E. bryophila
- P5 Exp more than 1.5 times as long as wide................................................................24
24 P5 Exp about 2.0 times as long as wide.......................................................... E. grandidieri
- P5 Exp more than 2.5 times as long as wide....................................................... E. longipedis
25 P5 Exp with 4 setae.............................................................................. E. affinis
- P5 Exp with 5 setae...................................................................................26
26 Anal operculum with 10–14 spinules........................................................ E. bidens decorata
- Anal operculum with more than 18 spinules................................................................27
27 Caudal ramus about 2.0 times as long as wide..................................................... E. intermedia
- Caudal ramus less than 1.5 times as long as wide...................................................... E. similis
description: Published as part of Watiroyram, Santi, Sanoamuang, La-Orsri & Brancelj, Anton, 2017, Two new species of Elaphoidella (Copepoda, Harpacticoida) from caves in southern Thailand and a key to the species of Southeast Asia, pp. 501-525 in Zootaxa 4282 (3) on page 522, DOI: 10.11646/zootaxa.4282.3.5, http://zenodo.org/record/827956