Mysidium (Mysidium) rickettsi Harrison & Bowman 1987
Creators
Description
Mysidium (Mysidium) rickettsi Harrison & Bowman, 1987
Mysidium rickettsi Harrison & Bowman, 1987: 674 –678, figs 1–3.
Mysidium rickettsi – Ferrari 2001: table 1 (in taxa list). — Ortiz 2001: 100. — Escobar-Briones 2002: 304. — Price 2004: 65 (in checklist). — Price et al. 2009: 232. — Gómez-Gutiérrez et al. 2014: 1027, table 3. — Ortiz et al. 2017a: table 1; 2017b: 78. — Ortiz & Lalana 2018: 80.
Mysidium reckettsi – Gómez-Gutiérrez et al. 2014: 1009 (invalid spelling variant).
Mysidium ricketsi – Gómez-Gutiérrez et al. 2014: 1024 (invalid spelling variant).
Material examinedNone.
Type localityGulf of California, Punta Marcial, 25.5167° N, 111.0167° W (Harrison & Bowman 1987).
Revised definitionAdapted to the scheme in Table 2 by using published data (Harrison & Bowman 1987; Ortiz et al. 2017b) on adults of both sexes: all features diagnosed above for genus and subgenus Mysidium Dana, 1852, with the reservation that the detailed structure of the setae on the merus of thoracic endopod 3 is unknown. Cornea calotte-shaped in dorsal view, its diameter 2.1 times as long as terminal segment of antennular trunk. Eyestalks smooth. Rostrum round-triangular, not extending beyond eyestalks.Appendix masculina obscurely bilobate, all along inner margins fringed by large setae; its length 1.5 times terminal segment of antennular trunk. Length of antennal scale four times maximum width; scale reaching well beyond antennular trunk. Median segment of mandibular palp with setae all along inner margin, whereas setae lacking on outer margin. Carpopropodus with two segments in thoracic endopods 1–2, 7–8, versus three segments in endopods 3–6. Basal segment is 0.6 times total length of carpopropodus of endopod 3. Male pleopod 1 stout, allusively bilobate. Sympod of male pleopod 4 without endite. Its exopod with basal
Table 2 (continued).
Original data and from 1) Harrison & Bowman 1987; 2) Ortiz et al. 2017a, 2017b; 3) Băcescu 1991; 1, 2, 3) data partly derived from figures.
segment occupying 58% total length. Endopod reduced to lobe with = 11% sympod length; apically with one long seta and more proximally six additional, smaller setae. Uropodal endopod 0.6–0.7 times as long as exopod. Telson linguiform, tapering posteriorly, length 1.9 times maximum width near basis; lateral margins slightly convex, almost straight; terminal margin clearly convex, well rounded. Proximal half of lateral margins smooth, distal half with dense series of 30–37 short, blunt or pointed spines on each side; lateral margins each with about 19 spines, terminal margin with about 24 spines.
Distribution and habitatEast Pacific coast of Mexico: Gulf of California, Islas Tres Marías, 21–26° N. Occurring in shallow, coastal marine waters where it forms dense epibenthic swarms (Gómez-Gutiérrez et. al. 2014). Also collected with night light at surface and from fish stomachs (Harrison & Bowman 1987; Ortiz et al. 2017b).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Mysidae
- Genus
- Mysidium
- Kingdom
- Animalia
- Order
- Mysida
- Phylum
- Arthropoda
- Scientific name authorship
- Harrison & Bowman
- Species
- rickettsi
- Taxon rank
- species
- Taxonomic concept label
- Mysidium (Mysidium) rickettsi Harrison, 1987 sec. Wittmann & Wirtz, 2019
References
- Harrison E. B. & Bowman T. E. 1987. Mysidium rickettsi, a new species of mysid from the Gulf of California (Crustacea: Mysidacea: Mysidae). Proceedings of the Biological Society of Washington 100 (3): 674 - 679.
- Ferrari F. D. 2001. The work of Thomas Elliot Bowman III (1918 - 1995). Crustacean Issues 13: 1 - 17.
- Ortiz M. 2001. Los invertebrados marinos, estuarinos y semiterrestres de la playa de Cojimar, en la costa norte de la provincia Ciudad de La Habana. Revista Investigaciones Marinas 22 (2): 93 - 102.
- Escobar-Briones E. 2002. Lophogastrida y Mysida. In: Morrone Lupi J. J., Llorente-Bousquets J. E. & Ponce H. (eds) Biodiversidad, taxonomia y biogeografia de artropodos de Mexico: Hacia una sintesis de su conocimiento. Vol. III: 291 - 304. Mexico D. F., Universidad Nacional Autonoma de Mexico.
- Gomez-Gutierrez J., Funes-Rodriguez R., Arroyo-Ramirez K., Sanchez-Ortiz C. A., Beltran-Castro J. R., Hernandez-Trujillo S., Palomares-Garcia R., Aburto-Oropeza O. & Ezcurra E. 2014. Oceanographic mechanisms that possibly explain dominance of neritic-tropical zooplankton species assemblages around the Islas Marias Archipelago, Mexico. Latin American Journal of Aquatic Research 42 (5): 1009 - 1034. https: // doi. org / 10.3856 / vol 42 - issue 5 - fulltext- 7
- Ortiz M., Hendrickx M. E. & Winfield I. 2017 a. A new species of Mysidium (Peracarida: Mysida: Mysidae) from the eastern tropical Pacific. Journal of the Marine Biological Association of the United Kingdom 97 (1): 113 - 117. Published online in 2016. https: // doi. org / 10.1017 / S 0025315416000102 Ortiz M., Hendrickx M., Winfield I. & Chazaro-Olvera S. 2017 b. The genus Mysidium Dana, 1852 (Crustacea, Peracarida, Mysida) in tropical America: Synthesis and identification key to species. Revista Investigaciones Marinas 37 (1): 69 - 85.
- Ortiz M. & Lalana R. 2018. Los Misidaceos (Lophogastrida, Stygiomysida y Mysida), de Cuba: Historia, claves dicotomicas, figuras y bibliografia. Revista Investigaciones Marinas 37 (2) (2017): 61 - 79.
- Dana J. D. 1852. Crustacea. Part I. United States Exploring Expedition during the Years 1838, 1839, 1840, 1841, 1842 under the Command of Charles Wilkes, U. S. N. Vol. XIII (I). C. Sherman, Philadelphia.