You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Paraxenisthmus springeri, New Genus and Species of Gobioid Fish from the West Pacific, and Its Phylogenetic Position within the Xenisthmidae
Anthony C. Gill and Douglass F. Hoese
Vol. 1993, No. 4 (Dec. 28, 1993), pp. 1049-1057
Stable URL: http://www.jstor.org/stable/1447083
Page Count: 9
You can always find the topics here!Topics: Cartilage, Fish scales, Bones, Jaw, Ligaments, New genus, Vomer, Genera, Cycloids, Spine
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Paraxenisthmus springeri is described from two specimens from the Solomon Islands. It is unique among xenisthmids in having: vomer with two separate patches of teeth; palatine with elongate patch of teeth; coronomeckelian bone present; dorsal postcleithrum present; ceratobranchial 5 broad; infrapharyngobranchial 2 broad, with two anterior cartilage heads and well-developed tooth patch; infrapharyngobranchial 4 present; infrapharyngobranchial 4 toothplate large; and basibranchial 3 present. Based on a cladistic analysis of osteological and external characters, Paraxenisthmus is the sister group of a monophyletic group that includes all other xenisthmid genera (Allomicrodesmus, Rotuma, Tyson and Xenisthmus). Further evidence is presented that Allomicrodesmus, Rotuma, and Tyson form the sister group of Xenisthmus.