Alloleptochelia Gutu 2016
Creators: name: Tzeng, You-Wei
name: Wei, Chih-Lin
name: Ma, Lin
name: Li, Xinzheng
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Tanaidacea
Leptocheliidae
Alloleptochelia

description: Key to the species of Alloleptochelia (modified and updated from Guţu 2016)
Female
1 Body less than six times longer than wide; dorsal seta of pereopods 2–3 basis longer than merus.... A. falciformes sp. nov.
- Body at least seven times longer than wide; dorsal seta of pereopods 2–3 basis shorter than merus..................... 2
2 Pereopod-2 merus with one robust ventrodistal spiniform seta; ventrodistal seta of carpus longer than half length of propodus........................................................................................... A. helenae
- Pereopod-2 merus with one or two small ventrodistal spiniform setae; ventrodistal seta of carpus shorter than half length of propodus........................................................................................... 3
3 Pereopod-1 dactylus together with unguis slightly shorter than propodus.................................. A. heardi
- Pereopod-1 dactylus together with unguis longer than propodus................................................ 4
4 Pereopod-1 dactylus together with unguis slightly longer than propodus and much shorter than basis........ A. monotricha
- Pereopod-1 dactylus together with unguis much longer than propodus and about as long as basis.............. A. angusta Male
1 Antennule flagellum with 13 articles; antenna article-3 without dorsodistal spiniform (or simple) seta.... A. multiarticulata
- Antennule flagellum with at most ten articles; antenna article-3 with dorsodistal spiniform (or simple) seta.............. 2
2 Antenna article-3 with very long dorsodistal spiniform seta (about half as long as article-4).......................... 3
- Antenna article-3 with relatively short dorsodistal spiniform (or simple) seta (much shorter than half length of article-4)... 4
3 Pereopods 4–6 merus with dorsodistal seta......................................................... A. insolita
- Pereopods 4–6 merus without dorsodistal seta................................................... A. monotricha
4 Pereopods 4–6 ischium with three ventral setae..................................................... A. helenae
- Pereopods 4–6 ischium with two ventral setae.............................................................. 5
5 Pereopods 4–6 dactylus long and slender, falciform, about 0.7 times as long as propodus............................ 6
- Pereopods 4–6 dactylus stout, at most half as long as propodus................................................. 7
6 Pereopods 4–6 dactylus and unguis separated, with distal setae...................................... A. longimana
- Pereopods 4–6 dactylus and unguis not clearly separated, naked.............................. A. falciformes sp. nov.
7 Antennule peduncle article-3 longer than half of article-2........................................... A. erythraea
- Antennule peduncle article-3 at most one-third as long as article-2.............................................. 8
8 Pereopods 2–3 merus with two ventrodistal small spiniform setae...................................... A. angusta
- Pereopods 2–3 merus with one ventrodistal stout spiniform seta................................................ 9
9 Cheliped fixed finger incisive margin with small proximal apophysis..................................... A. heardi
- Cheliped fixed finger smooth.................................................................... A. evansi
description: Published as part of Tzeng, You-Wei, Wei, Chih-Lin, Ma, Lin & Li, Xinzheng, 2023, Three new species of Paratanaoidea (Crustacea, Tanaidacea) from the South China Sea, pp. 1-30 in Zootaxa 5375 (1) on pages 13-14, DOI: 10.11646/zootaxa.5375.1.1, http://zenodo.org/record/10170958