The genus Surinamysis (Mysida, Mysidae, Diamysini) from Amazonia and the coast of Brazil, with descriptions of two new species

in Crustaceana
Restricted Access
Get Access to Full Text
Rent on DeepDyve

Have an Access Token?

Enter your access token to activate and access content online.

Please login and go to your personal user account to enter your access token.


Have Institutional Access?

Access content through your institution. Any other coaching guidance?


The mysid Surinamysis rionegrensis sp. nov. is described from Rio Negro, a large freshwater tributary of the Amazon. A supplemented description is given for the freshwater species S. robertsonae Bamber & Henderson, 1990, and its known distribution within the Amazon system is amended. A further representative of this genus, S. aestuaria sp. nov., is described from brackish waters within the estuary system of Rio Quatipuru on the NE coast of Brazil. These three species share large statoliths mineralized with vaterite, a metastable polymorph of crystalline calcium carbonate. Among the three flagella of the male antennula, the median, ventral one is identified as an accessory flagellum, as opposed to the Old World genera Mesopodopsis and Limnomysis, where the inner flagellum or lobe is accessory. The distinctive characters of Surinamysis and its five species are presented. The diagnosis of this genus is modified and a key to its species is given.

The genus Surinamysis (Mysida, Mysidae, Diamysini) from Amazonia and the coast of Brazil, with descriptions of two new species

in Crustaceana



AndersonG.2008. Mysida Classification September 9 2008: 1-24. (Instant Web Publishing). Available online at (accessed 12 January 2009).

ArianiA. P.WittmannK. J.2000. Interbreeding versus morphological and ecological differentiation in Mediterranean Diamysis (Crustacea, Mysidacea), with description of four new taxa. Hydrobiologia441: 185-236.

ArianiA. P.WittmannK. J.FrancoE.1993. A comparative study of static bodies in mysid crustaceans: Evolutionary implications of crystallographic characteristics. Biological Bulletin185: 393-404.

AudzijonyteA.WittmannK. J.VäinöläR.2008. Tracing recent invasions of the Ponto-Caspian mysid shrimp Hemimysis anomala across Europe and to North America with mitochondrial DNA. Diversity and Distributions14: 179-186.

BamberR. N.HendersonP. A.1990. A new freshwater mysid from the Amazon, with a reassessment of Surinamysis Bowman (Crustacea: Mysidacea). Zoological Journal of the Linnean Society100: 393-401.

Bond-BuckupG.TavaresL.1998. Malacostraca — Peracarida. Mysidacea. In: YoungP. S. (ed.) Catalogue of Crustacea of Brazil. Série Livros n. 6: 525-531. (Museu Nacional (Brasil)Rio de Janeiro). Available online at (accessed 12 December 2016).

BowmanT. E.1977. A review of the genus Antromysis (Crustacea: Mysidacea), including the new species from Jamaica and Oaxaca, Mexico, and a redescription and new records for A. cenotensis. In: ReddellJ. R. (ed.) Studies on the caves and cave fauna of the Yucatan Peninsula. Association of Mexican Cave Studies Bulletin 6: 27-38.

BowmanT. E.1980. Antromysis (Surinamysis) merista, a new freshwater mysid from Venezuela (Crustacea: Mysidacea). Proceedings of the Biological Society of Washington93: 208-215.

BowmanT. E.1981. Mysidacea. In: HurlbertS. H.RodríguezG.SantosN. D. (eds.) Aquatic biota of tropical South America Part 1: Arthropoda (12): 27. (San Diego State UniversitySan Diego, CA).

BrattegardT.1977. Three species of Mysidacea (Crustacea) from Surinam. Zoologische Mededelingen50(18): 283-293.

FukuokaK.2006. Taxonomy and Geographic Distribution of Mysids of the Tribe Mysini (Crustacea: Mysida: Mysidae). TAXA Proceedings of the Japanese Society of Systematic Zoology21: 13-18.

ITIS (Integrated Taxonomic Information System) 2014. Source: Mysida Taxa and Literature website (version 22-Mar-05). Available online at (accessed 25 December 2014).

MeesJ.2014. Mysida. In: MeesJ.MelandK. (eds.) World List of Lophogastrida Stygiomysida and Mysida. World Register of Marine Species: 1-19. (Instant Web Publishing). Available online at (accessed 28 December 2014).

MüllerH.-G.1993. World catalogue and bibliography of the recent Mysidacea. (Wissenschaftlicher Verlag H.-G. MüllerWetzlar).

NouvelH.1957. Mysidacés provenant de deux échantillons de “Djembret” de Java. Zoologische Mededelingen35(22): 315-331.

NouvelH.1965. Mysidacés récoltés par S. Frontier a Nosy-Bé II. Description de deux Mysini appartenant aux genres Diamysis et Acanthomysis. Bulletin de la Société d’Histoire naturelle de Toulouse100: 451-464.

PamplonaF. C.PaesE. T.NepomucenoA.2013. Nutrient fluctuations in the Quatipuru river: A macrotidal estuarine mangrove system in the Brazilian Amazonian basin. Estuarine Coastal and Shelf Science133: 273-284.

PriceW. W.2001. World list of Mysidacea. NeMys doc_id: 3677. Available online at (accessed 23 July 2002).

TattersallW. M.1951. A review of the Mysidacea of the United States National Museum. Bulletin of the United States National Museum201: 1-292.

TattersallW. M.TattersallO. S.1951. The British Mysidacea. Ray Society Monograph 136: 1-460. (The Ray SocietyLondon).

WittmannK. J.1981. Comparative biology and morphology of marsupial development in Leptomysis and other Mediterranean Mysidacea (Crustacea). Journal of Experimental Marine Biology and Ecology52: 243-270.

WittmannK. J.1992. Morphogeographic variations in the genus Mesopodopsis Czerniavsky with descriptions of three new species (Crustacea, Mysidacea). Hydrobiologia241: 71-89.

WittmannK. J.2008. Two new species of Heteromysini (Mysida, Mysidae) from the Island of Madeira (N.E. Atlantic), with notes on sea anemone and hermit crab commensalisms in the genus Heteromysis S. I. Smith, 1873. Crustaceana81: 351-374.

WittmannK. J.ArianiA. P.2012. The species complex of Diamysis Czerniavsky, 1882, in fresh waters of the Adriatic basin (NE Mediterranean), with descriptions of D. lacustris Băcescu, 1940, new rank, and D. fluviatilis sp. nov. (Mysida, Mysidae). Crustaceana85: 1745-1779.

WittmannK. J.ArianiA. P.DaneliyaM.2016. The Mysidae (Crustacea: Peracarida: Mysida) in fresh and oligohaline waters of the Mediterranean. Taxonomy, biogeography, and bioinvasion. Zootaxa4142: 1-70.

WittmannK. J.ArianiA. P.LagardèreJ.-P.2014. Orders Lophogastrida Boas, 1883, Stygiomysida Tchindonova, 1981, and Mysida Boas, 1883 (also known collectively as Mysidacea). In: von Vaupel KleinJ. C.Charmantier-DauresM.SchramF. R. (eds.) Treatise on Zoology — Anatomy Taxonomy Biology. The Crustacea. Revised and updated as well as extended from the Traité de Zoologie4B: 189-396colour plates: 404-406. (Koninklijke Brill NVLeiden).

WittmannK. J.SchlacherT. A.ArianiA. P.1993. Structure of Recent and fossil mysid statoliths (Crustacea, Mysidacea). Journal of Morphology215: 31-49.


  • View in gallery

    Surinamysis robertsonae Bamber & Henderson, 1990, from the type locality Lago Calado (A, B, H, J) and from Lago Arara (C-G, K-M); allotype female with 5.3 mm body length (A, J), holotype male 5.6 mm (B, H); non-types: male 4.8 mm (C, M) and female 5.2 mm (D-G, K, L); A, cephalic region of female (setae omitted from antennal scale); B, eyes and anterior margin of carapace in male; C, male antennula, dorsal aspect (af = accessory flagellum); D, mandibles with right palp; E, tip of second thoracic endopod; F, tip of eighth thoracic endopod; G, detail of (F) showing modified seta at end of merus; H, J, terminal margin of sixth pleonite, lateral, in male holotype (H) versus female allotype (J); K, telson; L, series of thoracic exopods 1-8 (as basis and/or flagella, without setae) in female; M, series of thoracic exopods 1-8 (without setae) in male.

  • View in gallery

    Surinamysis rionegrensis sp. nov. from the freshwater reach of Rio Negro about 80 km upstream of Manaus, holotype female with 5.6 mm body length; A, cephalic region (setae omitted from antennal scales); B, mandible with left palp; C, maxilla; D, first thoracopod with epipod and parts of sternites 1, 2; E, tip of second thoracic endopod; F, fifth thoracic exopod, setae omitted; G, sixth thoracic endopod; H, eighth thoracopod with its marsupial plate; J, detail of (H) showing terminal third of eighth endopod; K, detail of (J) showing the modified seta with its small accompanying seta at end of merus, side view; L, the two setae as in (K) from the opposite (right) endopod, top view; M, fourth pleopod; N, terminal margin of sixth pleonite, lateral; O, telson.

  • View in gallery

    Surinamysis aestuaria sp. nov. from the estuary of Rio Cavalo, holotype female with 5.8 mm body length (A), allotype male 5.2 mm (B), paratype male 4.8 mm (C), paratype male 5.2 mm (D, F, G), and paratype female 5.6 mm (E, H) with one of its larvae (J); A, cephalic region of female (setae omitted from antennal scales); B, right male antennula, dorsal aspect (af = accessory flagellum); C, trunk of left male antennula, ventral aspect (af = accessory flagellum; am = appendix masculina = male lobe); D, labrum, dorsal aspect; E, mandibles with right palp; F, labium; G, maxillula; H, maxilla; J, nauplioid larva at stage N2, lateral.

  • View in gallery

    Surinamysis aestuaria sp. nov. from the estuary of Rio Cavalo, paratype female with 5.6 mm body length (A, B, E-G) and paratype male 5.2 mm (C, D, H); A, first thoracopod including its epipod and thoracic sternites 1-4; B, second thoracic endopod in female; C, tip of second thoracic endopod in male; D, third thoracic endopod of male; E, the same for female; F, sixth thoracopod, arrow points to presumed rudimentary oostegite; G, series of thoracic exopods 1-8 (as basis and/or flagella, without setae) in female; H, series of thoracic exopods 1-8 (without setae) in male.

  • View in gallery

    Surinamysis aestuaria sp. nov. from the estuary of Rio Cavalo, paratype male with 5.2 mm body length (A, B, E, F, K), paratype female 5.6 mm (C, D, G, L), allotype male 5.2 mm (H), and holotype female 5.8 mm (J); A, eighth thoracopods with penis; B, detail of (A) showing end of merus and entire ‘tarsus’ of male; C, end of merus and entire ‘tarsus’ of eighth thoracopod in female; D, detail of (C) showing the modified seta and its small accompanying seta; E, fourth pleopod of male; F, fifth pleopod of male; G, fifth pleopod of female; H, terminal margin of sixth pleonite in male, lateral; J, the same for female; K, uropods; L, telson.


Content Metrics

Content Metrics

All Time Past Year Past 30 Days
Abstract Views 38 38 9
Full Text Views 64 64 47
PDF Downloads 5 5 3
EPUB Downloads 0 0 0