Systematic Parasitology

, Volume 92, Issue 1, pp 13–21 | Cite as

A new genus for Entophilus mirabiledictu Markham & Dworschak, 2005 (Crustacea: Isopoda: Cryptoniscoidea: Entophilidae) with remarks on morphological support for epicaridean superfamilies based on larval characters

  • Christopher B. BoykoEmail author
  • Jason D. Williams


A detailed reexamination of male and female Entophilus mirabiledictu Markham & Dworschak, 2005 (an endoparasite of callianassid shrimp), resulted in recognition of seven female and five male characters that separate the species from its sole congener, E. omnitectus Richardson, 1903 (an endoparasite of munidid squat lobsters). These characters show that the two species are so different as to warrant E. mirabiledictu being placed in its own genus within the Entophilidae. Additionally, a review of the morphological features of entophilid cryptoniscus larvae led to the finding that the number of flagellar segments on the second antenna offers morphological support for a recent molecular phylogeny of epicaridean taxa that rearranged the component families within the two recognised superfamilies. This work highlights the power of using larval characters in testing hypotheses on the evolutionary relationships of epicaridean taxa.


Anterior Margin Male Character Oral Sucker Lateral Plate Antennal Segment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



Thanks to Peter Dworschak (NHMW) for loan of specimens.


The research was supported by a National Science Foundation Grant (DBI-1337525) awarded to J. D. Williams (Hofstra University).

Conflict of interest

The authors declare that they have no conflict of interest.

Compliance with ethical standards

All applicable institutional, national and international guidelines for the care and use of animals were followed.


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Department of BiologyDowling CollegeOakdaleUSA
  2. 2.Division of Invertebrate ZoologyAmerican Museum of Natural HistoryNew YorkUSA
  3. 3.Department of BiologyHofstra UniversityHempsteadUSA

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