Coralliocaris
Creators: name: Mitsuhashi, Masako
name: Takeda, Masatsune
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Palaemonidae
Coralliocaris

description: Key to species of Coralliocaris
1. Lateral margin of dactylus of second pereiopod strongly convex and semicircular..................................2
- Lateral margin of dactylus nearly straight or abruptly angled....................................................................4
2. Rostrum with one dorsal tooth, unarmed on ventral margin ........................................................................ .............................................................................................. C. macrophthalma (H. Milne Edwards, 1837)
- Rostrum usually with 4 or 5 dorsal teeth, 1 or 2 ventral teeth; first pereiopods slender, chela about 4 times as long as width..........................................................................................................................................3
3. Basis of first pleopod with flattened setae on dorsal surface in males and young; posterior ventral angle of fifth abdominal segment acute ........................................................................... C. graminea (Dana, 1852)
- Basis of first pleopod without setae on dorsal surface; posterior ventral angle of fifth abdominal segment
rounded ..................................................................................................................... C. viridis Bruce, 1974 4. Lateral margin of dactylus of second pereiopod abruptly angled; rostrum usually with 4 or 5 dorsal teeth.....................................................................................................................................................................5
- Lateral margin of dactylus of second pereiopod nearly straight, not angled, cutting edge with 1 to 3 triangular teeth; rostrum with 0 to 5 dorsal teeth...............................................................................................6
5. Third maxilliped with penultimate segment less than twice as long as wide; cutting edge of fixed finger with 2 teeth; dactylus of third to fifth pereiopods tipped with small projection, hook-shaped protuberance strong ................................................................................................................... C. superba (Dana, 1852)
- Third maxilliped with penultimate segment more than twice as long as wide; cutting edge of fixed finger with oval fossa; dactylus of third to fifth pereiopods without small projection on tip, hook-shaped protuberance not strongly curved ....................................................... C. taiwanensis (Fujino and Miyake, 1972)
6. Dactylus of second pereiopod smooth and without longitudinal ridge on medial surface; rostrum unarmed.....................................................................................................................................................................7
- Dactylus of second pereiopod with longitudinal ridge on medial surface; rostrum unarmed or armed.....8
7. Dactylus of second pereiopod roundly convex at distal half of cutting edge, cutting edge with 1 or 2 triangular teeth .................................................................................................. C. brevirostris Borradaile, 1898
- Dactylus of second pereiopod smoothly concave at distal half of cutting edge; movable finger with three triangular teeth on cutting edge ....................................... C. tridens Mitushashi, Takeda and Fujino, 2001
8. Rostral eave smoothly angled; colour in life whitish with fine longitudinal whitish yellow stripes on body and scattered yellow and red dots on appendages .................................... Coralliocaris labyrintha sp. nov.
- Rostral eave nearly straight; colour in life with large white spots or with fine black longitudinal stripes on body............................................................................................................................................................9
9. Fingers of first pereiopod forming concavity on medial surface; colour in life with large white patches ... ............................................................................................................................ C. nudirostris Heller, 1861
- Fingers of first pereiopod without concavity on medial surface; colour in life with fine black striate ........ ........................................................................................................................ Coralliocaris sandyi sp. nov.
description: Published as part of Mitsuhashi, Masako & Takeda, Masatsune, 2008, Identity of the coral-associated pontoniine shrimp species, Coralliocaris nudirostris (Heller, 1861) and C. venusta Kemp, 1922 (Crustacea: Decapoda: Palaemonidae), with descriptions of two new species, pp. 1-24 in Zootaxa 1703 on pages 21-22, DOI: 10.5281/zenodo.180835