Electroreceptive and mechanoreceptive anatomical specialisations in the epaulette Shark (Hemiscyllium ocellatum)

Marit Winther-Janson, Barbara E. Wueringer, Jamie E. Seymour

Research output: Contribution to journalArticle

9 Citations (Scopus)
15 Downloads (Pure)

Abstract

The arrangement of the electroreceptive ampullary system and closely related mechanoreceptive lateral line canal system was investigated in the epaulette shark, Hemiscyllium ocellatum. The lateral line canals form an elaborate network across the head and are continuously punctuated by pores. Ampullary pores are distributed in eleven distinct pore fields, and associated ampullary bulbs are aggregated in five independent ampullary clusters on either side of the head. Pores are primarily concentrated around the mouth and across the snout of the animal. We provide the anatomical basis for future behavioural studies on electroreception and mechanoreception in epaulette sharks, as well as supporting evidence that the electroreceptive ampullary system is specialised to provide behaviourally relevant stimuli. In addition, we describe ampullary pores distributed as far posteriorly as the dorsal fin and thus reject the assumption that ampullary pores are restricted to the cephalic region in sharks.
Original languageEnglish
Pages (from-to)e49857-1-e49857-6
Number of pages6
JournalPLoS ONE
Volume7
Issue number11
DOIs
Publication statusPublished - 2012
Externally publishedYes

Bibliographical note

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