Petalophthalminae Czerniavsky 1882

Autor: Forman, Jeffrey S., Schnabel, Kareen E.
Rok vydání: 2021
Předmět:
DOI: 10.5281/zenodo.5700125
Popis: Key to the genera and species of the subfamily Petalophthalminae This key is modified from Panampunnayil 1982, Wang 1998, San Vicente et al. 2014, San Vicente & Corbari 2015, and Wittmann, 2020 and is proposed to include the two new species described herein. 1. Outer margin of antennal scale naked, ending in a single spine.................................................. 2 - Antennal scale setose all around.......................................................................... 4 2. Thoracic endopods 6���8 rudimentary, 1���2 articlulate; thoracic endopods 3���5 ending in 2 short setae; eyestalk elongated, without papilla, (Parapetalophthalmus Murano & Bravo, 1998; monotypic).................................................................................................... Parapetalophthalmus suluensis Murano & Bravo, 1998 - Thoracic endopods 3���8 with more than 4 articles ending in a strong claw; third article of mandibular palp with seven long, strong setae; (Pseudopetalophthalmus Bravo & Murano, 1997)................................................ 3 3. Telson with 4 setae on lateral margin; thoracic endopods 3���5 with carpopropodus longer than merus........................................................................... Pseudopetalophthalmus australis Panampunnayil, 1982 - Telson with 7���8 setae on the lateral margin; thoracic endopods 3���5 with carpopropodus longer than merus.................................................................... Pseudopetalophthalmus japonicus Bravo & Murano, 1997 4. Eyes globular or flat, without distinct cornea; terminal margin of telson without long plumose setae (Petalophthalmus Willemoes-Suhm, 1875)............................................................................... 5 - Eyes with distinct cornea with functional visual elements; telson apex with four plumose setae (Ipirophthalmus Wittmann 2020)............................................................................................... 9 5. Eyes globular, with eyestalks, cornea with irregularly distributed retinular cells......................................................................................... Petalophthalmus papuaensis San Vicente & Corbari, 2015 - Eyes flattened and without functional visual elements........................................................ 6 6. Rostrum absent; anterior margin of carapace truncate; telson with 25���37 setae on the distal 2/3 of lateral margin....................................................... Petalophthalmus papilloculatus San Vicente, Frutos & Cartes, 2014 - Rostrum present, acute................................................................................. 7 7. Eyes leaf-like; thoracic endopod 5 with preischium, ischium, and merus subequal in length; carpus and propodus subequal; telson with.................................................. Petalophthalmus armiger Willemoes-Suhm, 1875 - Eyes elongate, ovoid; merus of thoracic endopod 5 longer than ischium.......................................... 8 8. Eyes dorsoventrally flattened by a factor of 1.4; merus of thoracic endopod 2 with 5 large setae on outer margin, carpopropodus with 3 long and 6 short setae on the outer margin; merus of thoracic endopod 5 longer than combined preischium and ischium; carpus less than half length of propodus................................. Petalophthalmus cristatus Wittmann, 2020 - Eyes laterally flattened; elongated ventilation lobe on 7 th oostegites; merus of thoracic endopod 2 with 6 large setae on inner margin; merus of thoracic endopod 5 subequal to preischium and ischium combined; carpus subequal to propodus.................................................................................. Petalophthalmus lobatus sp. nov. 9. Thoracic endopods 6���8 rudimentary, shorter than proximal article of exopod............ Ipirophthalmus crusulus sp. nov. - Thoracic endopods 6���8 comprised of 4 or more articles, longer than proximal article of exopod...................... 10 10. Cornea hemispherical or reniform, covering less than half of lateral margin of eyestalk; telson apex emarginate.......... 11 - Cornea reniform, covering more than half of lateral margin of eyestalk; telson apex not emarginate................... 12 11. Telson with 12���15 setae on the lateral margins; eye cornea reniform; eyestalk without ocular papilla; scale shorter than antenna; female pleopods biramous....................................... Ipirophthalmus caribbeanus O.S. Tattersall, 1968 - Telson with 17���18 setae on the lateral margins; eye cornea hemispherical; eyestalk with ocular papilla; scale longer than antenna; female pleopods uniramous.......................................... Ipirophthalmus oculatus Illig, 1906 12. Telson with 16���19 setae on the lateral margins, combined width of eyes subequal to carapace width; antennal scale with apical lobe....................................................................... Ipirophthalmus liui Wang, 1998 - Telson with 21���22 setae on the lateral margins; eyes very large, combined width wider than carapace width; antennal scale without apical lobe.................................... Ipirophthalmus macrops Tchindonova & Vereshchaka, 1991
Published as part of Forman, Jeffrey S. & Schnabel, Kareen E., 2021, Two new species of Petalophthalmus and Ipirophthalmus (Crustacea: Mysida: Petalophthalmidae), from New Zealand, pp. 451-475 in Zootaxa 5061 (3) on pages 472-473, DOI: 10.11646/zootaxa.5061.3.3, http://zenodo.org/record/5649841
{"references":["Panampunnayil, S. (1982) Description of a new species of Petalopthalmus [sic] (Mysidacea) with a revised definition of the genus. Journal of Plankton Research, 4 (3), 643 - 650. https: // doi. org / 10.1093 / plankt / 4.3.643","Wang, S. (1998) On new and rare species of Mysidacea (Crustacea) from the Northern South China Sea. Studia Marina Sinica, 40, 199 - 244. [in Chinese with English abstract]","San Vicente, C., Frutos, I. & Cartes, J. E. (2014) Petalophthalmus papilloculatus sp nov. (Crustacea: Mysida: Petalophthalmidae), a new bathyal suprabenthic mysid from the Galicia Bank (NE Atlantic Ocean). Zootaxa, 3765 (1), 77 - 91. https: // doi. org / 10.11646 / zootaxa. 3765.1.5","San Vicente, C. & Corbari, L. (2015) A new bathyal mysid of the family Petalophthalmidae (Crustacea: Mysida) from the Bismarck Sea (Western Tropical Pacific Ocean). Zootaxa, 3925 (2), 241 - 256. https: // doi. org / 10.11646 / zootaxa. 3925.2.6","Wittmann, K. J. (2020) Lophogastrida and Mysida (Crustacea) of the \" DIVA- 1 \" deep-sea expedition to the Angola Basin (SE- Atlantic). European Journal of Taxonomy, 628, 1 - 43. https: // doi. org / 10.5852 / ejt. 2020.628","Murano, M. & Bravo, M. R. (1998) Parapetalophthalmus suluensis, a new genus and species (Crustacea: Mysidacea: Petalophthalmidae) from the Sulu Sea. Proceedings of the Biological Society of Washington, 111 (4), 849 - 856.","Bravo, M. R. & Murano, M. (1997) Pseudopetalophthalmus japonicus, new genus, new species (Mysidacea: Petalophthalmidae). Journal of Crustacean Biology, 17, 725 - 732.","Willemoes-Suhm, R. von (1875) On some Atlantic Crustacea from the ' Challenger' Expedition. Transactions of the Linnean Society of London, Series 2, Zoology, 1 (1), 23 - 59. https: // doi. org / 10.1111 / j. 1096 - 3642.1875. tb 00433. x","Tattersall, O. S. (1968) A new species of Petalophthalmus (Mysidacea) based on specimens from off Puerto Rico, hitherto referred to Petalophthalmus oculatus. Journal of Zoology, 155, 271 - 282. https: // doi. org / 10.1111 / j. 1469 - 7998.1968. tb 03052. x","Illig, G. (1906) Bericht uber die neuen Schizopodengattungen und-arten der deutschen Tiefsee-Expedition 1898 - 1899. Zoologischer Anzeiger, 30, 194 - 211.","Tchindonova, Y. G. & Vereshchaka, A. L. (1991) New mysid species Petalophthalmus macrops sp. n from the west part of the Indian Ocean. Zoologicheskii Zhurnal, 70 (1), 135 - 138. [in Russian with English abstract]"]}
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