Gastrosaccinae
publication ID |
https://doi.org/10.5281/zenodo.187980 |
DOI |
https://doi.org/10.5281/zenodo.6215191 |
persistent identifier |
https://treatment.plazi.org/id/039087AB-F26C-FFD5-FF4F-D03415DC063E |
treatment provided by |
Plazi (2016-04-19 14:57:00, last updated 2024-11-28 06:02:56) |
scientific name |
Gastrosaccinae |
status |
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Key to the species of Gastrosaccinae with apically widened third male pleopod
(Updated and modified from Heard and Price, 2006)
1 Fifth pleonite dorsally with caudally projecting, articulated lobe ( Fig. 1 View FIGURE 1 G). Endopod of uropod with mostly mediumsized to large spines (taking into account perspective shortening, c.f. Fig. 1 View FIGURE 1 E, F) along inner margin—no additional set of small spines near statocyst. West Atlantic and East Pacific...................... Chlamydopleon Ortmann, 1893 … 5
- Fifth pleonite without postero-dorsal lobe; endopod of uropod with medium-sized to large spines along inner margin plus an additional set of small spines near statocyst. West Atlantic and East Pacific ................................................... ....................................................................................................................... Coifmanniella Heard & Price, 2006 … 2
2 Postero-dorsal margin of carapace with a pair of non-reflected (= backwards oriented as in Fig. 1 View FIGURE 1 B, J) submedian lobes. Apical cleft (measured without laminae) is 8-14 % telson length. Gulf of Mexico, Caribbean, Bahamas......... ............................................................................................................................. Co. johnsoni ( W.M. Tattersall, 1937)
- Postero-dorsal margin of carapace with a pair of antero-dorsally reflected submedian lobes ..................................... 3
3 Apical cleft is 23–40 % telson length. Brazil (5–8°S), Puerto Rico, Virgin Islands... Co. merjonesi ( Bǎcescu, 1968)
- Apical cleft is less than 20 % telson length ................................................................................................................. 4
4 Lateral margins of telson armed with 4–12 subequal spines in continuous series. Pacific coast of Panama, West Atlantic (24°S–35°N; range extension to 24°S is reported above in material list for Ch. dissimile ) including Gulf of Mexico and Caribbean ....................................................................................... Co. mexicana ( W.M. Tattersall, 1951)
- Lateral margins of telson armed with 15–25 spines in discontinuous series of 6–8 larger spines with smaller spines between. Gulf of Mexico, Florida, Bahamas, Caribbean .......................................... Co. parageia ( Brattegard, 1970)
5 Rostrum reaching beyond eyestalks (excluding cornea). Postero-dorsal margin of carapace with subtriangular median lobe. Apical cleft is 10–16 % telson length. Exopod of third pleopod in the terminal male with bow, inner branch with inner stylet reaching to more than half length of distal segment. East Pacific continental coasts at 9–33°N .............................................................................................................................. Ch. banneri ( Bǎcescu, 1968) View in CoL
- Rostrum usually short, rarely overreaching terminal margin of eyestalk. Apical cleft is less than 13 % telson length. West Atlantic................................................................................................................................................................. 6
6 Postero-dorsal margin of carapace with sinusoid median lobe ( Fig. 1 View FIGURE 1 B). Exopod of third pleopod in the subterminal male with two setae on third segment ( Fig. 1 View FIGURE 1 D). Equatorial coast of Brazil................. Ch. aculeatum Ortmann, 1893
- Postero-dorsal margin of carapace with (sub)triangular median lobe ( Fig. 1 View FIGURE 1 J). Exopod of third pleopod in the subterminal male without setae on third segment ( Fig. 1 View FIGURE 1 K). The same exopod in the terminal male without bow, inner branch with inner stylet reaching to less than half length of distal segment. West Atlantic (25°S–39°N) including Gulf of Mexico and Caribbean ..................................................................................... Ch. dissimile ( Coifmann, 1937)
Bacescu, M. (1968) Contributions to the Knowledge of the Gastrosaccinae Psammobionte of the Tropical America, with the description of a new Genus (Bowmaniella, n. g.) and three new species of its frame. Travaux du Museum d´Histoire Naturelle Grigore Antipa , 8, 355 - 373.
Brattegard, T. (1970) Marine biological investigations in the Bahamas 11. Mysidacea from shallow water in the Bahamas and southern Florida. Part 2. Sarsia, 41, 1 - 35.
Coifmann, I. (1937) Misidacei raccolti dalla R. Corvetta Vettor Pisani negli anni 1882 - 85. Annuario del Museo Zoologico della Reale Universita di Napoli, N. S., 7 (3), 1 - 14.
Heard, R. W. & Price, W. W. (2006) Revision of Bowmaniella sensu Bacescu, 1968 (Crustacea: Mysida: Mysidae: Gastrosaccinae): a taxonomic conundrum. Zootaxa, 1269, 1 - 29.
Ortmann, A. E. (1893) Decapoden und Schizopoden. In: Hensen, V. (Ed), Ergebnisse der Plankton-Expedition der Humboldt-Stiftung, Lipsius und Tischer, Kiel und Leipzig, 2 Gb, 1 - 120, pls. 1 - 10.
Tattersall, W. M. (1937) New species of mysidacid crustaceans. Smithsonian Miscellaneous Collections, 91 (26), 1 - 18.
Tattersall, W. M. & Tattersall, O. S. (1951) The British Mysidacea, Ray Society, London, 460 pp.
FIGURE 1. Chlamydopleon aculeatum Ortmann, 1893, lectotype (A – D, F – H) and paralectotype (E): A, anterior body region of male; B, lobes at postero-dorsal margin of carapace; C, penis, lateral view on inner face; D, third pleopod of the subterminal male, lateral view on inner face; E, endopod of uropod, lateral; F, endopod of uropod, ventral; G, terminal portion of pleon, dorsal; H, detail of (G) showing tip of telson. — Subterminal males in Chlamydopleon dissimile (Coifmann, 1937), lectotype from Brazil (J, K) and specimen with total length of 7.7 mm from Georgia (L): J, lobes at postero-dorsal margin of carapace; K, terminal portion of exopod of third pleopod, lateral; L, outer branch of exopod of third pleopod. Abbreviations: b, blade; is, inner stylet; ob, outer branch; vp, ventral process.
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Gastrosaccinae |
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