Editorial Type:
Article Category: Research Article
 | 
Online Publication Date: 01 Feb 2006

Paraxenisthmus cerberusi, a New Species of Xenisthmid Fish from Palau (Percomorpha: Gobioidei)

and
Page Range: 10 – 13
DOI: 10.1643/0045-8511(2006)006[0010:PCANSO]2.0.CO;2
Save
Download PDF

Abstract

Paraxenisthmus cerberusi, described from four specimens from Augulpelu Reef, Palau, differs from its only congener (P. springeri from the Solomon Islands) in the following characteristics: pectoral fin rays 15–16 (vs. 18); posterior nasal (B) and ventral preopercular (Q′) cephalic lateralis pores absent (vs. present); head, nape, ventral abdomen, and dorsal midline of caudal peduncle naked (vs. scaled); and caudal peduncle with large black blotch (vs. no black blotch).

Copyright: The American Society of Ichthyologists and Herpetologists
<bold>Figure 1</bold>
Figure 1

Paraxenisthmus cerberusi, holotype, ROM 76575, 20.7 mm SL male, Palau, Augulpelu Reef

<bold>Figure 2</bold>
Figure 2

Paraxenisthmus cerberusi, paratype, ROM 77854, 13.6 mm SL juvenile, Palau, Augulpelu Reef.Note: head and anterior body twisted to the left so that head is in dorsolateral view

<bold>Figure 3</bold>
Figure 3

Paraxenisthmus cerberusi, holotype, ROM 76575, 20.7 mm SL male, left lateral (above) and dorsal (below) figures of head to show cephalic lateralis system pores and papillae.Canals outlined by dotted lines, papillae U-shaped, scale bar = 5 mm. Abbreviations: AIO = anterior interorbital; AO = anterior otic; IT = intertemporal; NA = anterior nasal; PIO = posterior interorbital; POP = preopercular; SO = supraotic

Contributor Notes

(RW) Department of Natural History, Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario, M5S 2C6, Canada; and (AG) School of Life Sciences, P.O. Box 874501, Arizona State University, Tempe, Arizona 85287-4501. rickw@rom.on.ca Send reprint requests to RW

Received: 01 Jun 2005
Accepted: 21 Aug 2005
  • Download PDF