Results 91 to 100 of about 1,110 (197)

An unusual, dwarf new species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae)

Papéis Avulsos de Zoologia, 2011
A new species of the relatively poorly known Neotropical freshwater stingray genus Plesiotrygon Rosa, Castello & Thorson, 1987 is described from the main channel and smaller tributaries (Ríos Itaya and Pachitea) of the upper Amazon basin in Peru.
Marcelo R. de Carvalho, Maíra P. Ragno
doaj   +1 more source

A new genus and species of the Dasybatotreminae Bychowsky, 1957 (Monogenea: Monocotylidae), parasitic on Hypanus dipterurus (Jordan & Gilbert) (Myliobatiformes: Dasyatidae) in the Southeastern Pacific Ocean off Peru

, 2018
Chero, Jhon D., Cruces, Celso L., Sáez, Gloria, Luque, José L. (2018): A new genus and species of the Dasybatotreminae Bychowsky, 1957 (Monogenea: Monocotylidae), parasitic on Hypanus dipterurus (Jordan & Gilbert) (Myliobatiformes: Dasyatidae) in the
Chero, Jhon D., GLORIA SÁEZ, JOSÉ L. LUQUE, JHON D. CHERO, Cruces, Celso L., Luque, José L., CELSO L. CRUCES, Sáez, Gloria   +7 more
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Figure 5 in Evolutionary history of the devilrays (Chondrichthyes: Myliobatiformes) from fossil and morphological inference

, 2015
Figure 5. Argoubia barbei gen. nov., sp. nov. A-E, Antero-lateral tooth, holotype, DAK3-1. A, lingual view; B, profile; C, labial view; D, occlusal view; E, basal view. F-J, Antero-lateral tooth, paratype, DAK3-2.
Cappetta, Henri, Guinot, Guillaume, Sciara, Giuseppe Notarbartolo Di, Adnet, Sylvain   +3 more
core   +1 more source

FIGURE 1 in New record of the smalleye stingray, Dasyatis microps (Myliobatiformes: Dasyatidae), from the western Indian Ocean

, 2008
FIGURE 1. Smalleye stingray, Dasyatis microps from southern Mozambique: A) dorsal view showing pectoral fin morphology; B) ventral view; C) dorsal view showing tail morphology and colouration; and D) specimen speared off Tofo Beach, Mozambique ...
White, William T., Marshall, Andrea D., Pierce, Simon J.   +2 more
core   +1 more source

A new stingray from the miocene of río negro and a review of the fossil myliobatiformes of Argentina

, 2023
We analyze a dental plate belonging to Myliobatiformes (Chondrichthyes, Batoidea) from the Gran Bajo del Gualicho Formation (Saladar Member; Upper Early Miocene-Lower Middle Miocene) located in Gran Bajo del Gualicho locality, Río Negro Province ...
de Pasqua, Julieta Jazmín, Bogan, Sergio, Aranciaga Rolando, Alexis Mauro, Agnolin, Federico, Gaetano, Leandro Carlos   +4 more
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How many lineages are there of the stingrays genus Hypanus (Myliobatiformes: Dasyatidae) and why does it matter? [PDF]

Neotropical Ichthyology
Stingrays genus Hypanus currently encompasses nine valid species from the Atlantic and Pacific oceans, though the phylogenetic relationships amongst some of them were based on a single mitochondrial gene and did not involve all putative Hypanus species ...
Flávia F. Petean, Lei Yang, Shannon Corrigan, Sergio M. Q. Lima, Gavin J. P. Naylor   +4 more
doaj   +1 more source

FIGURE 6 in Urogymnus acanthobothrium sp. nov., a new euryhaline whipray (Myliobatiformes: Dasyatidae) from Australia and Papua New Guinea

, 2016
FIGURE 6. Tail below caudal sting of Urogymnus acanthobothrium sp. nov., juvenile male holotype (WAM P.34488-001, 672 mm DW, fresh): A, lateral view; B, ventral view.
Kyne, Peter M., PETER M. KYNE, White, William T., Last, Peter R., WILLIAM T. WHITE, PETER R. LAST   +5 more
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Fig. 3 in Revision Of Anteropora (Cestoda: Lecanicephalidea) And Descriptions Of Five New Species From Stingrays (Myliobatiformes: Dasyatidae) In Borneo

, 2013
Fig. 3. Line drawings of Anteropora species. A–C, A. glandapiculis, new species. A, whole worm, paratype (USNPC 106524); B, scolex, paratype (USNPC 106522); C, terminal proglottid, holotype (MZUM[P] 2013.4[H]). D–F, A. patulobothridium, new species.
Mojica, Kendra R., Jensen, Kirsten, Caira, Janine N.   +2 more
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A taxonomic and morphological redescription of Potamotrygon falkneri Castex & Maciel, 1963 (Chondrichthyes: Myliobatiformes: Potamotrygonidae)

Neotropical Ichthyology
A taxonomic revision of two nominal species of freshwater stingrays of the genus Potamotrygon previously considered valid, Potamotrygon falkneri Castex & Maciel, 1963 and Potamotrygon castexi Castello & Yagolkowski, 1969, was conducted based on a ...
João Paulo C. B. da Silva, Marcelo R. de Carvalho   +1 more
doaj   +1 more source

Figure 6 in Evolutionary history of the devilrays (Chondrichthyes: Myliobatiformes) from fossil and morphological inference

, 2015
Figure 6. Oromobula dakhlaensis gen. nov., sp. nov. A-D, DAK2B-4, tooth position unknown. A, lingual view; B, profile; C, labial view; D, occlusal view. E-H, holotype DAK2B-5, tooth position unknown.
Cappetta, Henri, Guinot, Guillaume, Sciara, Giuseppe Notarbartolo Di, Adnet, Sylvain   +3 more
core   +1 more source