Redescription of Anchiphimedia dorsalis (Crustacea, Amphipoda, Iphimediidae) from the Antarctic, and functional morphology of mouthparts

• Published in: Zoologica Scripta
• Main Author: COLEMAN, CHARLES OLIVER
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1991
• Subjects: Antarctic; The Antarctic; Antarc*
• Online Access: http://dx.doi.org/10.1111/j.1463-6409.1991.tb00301.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-6409.1991.tb00301.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-6409.1991.tb00301.x

For the first time a full description of Anchiphimedia dorsalis K. H. Barnard, 1930 is given. The functional morphology of the mouthparts and the anatomy of the digestive canal exhibit several unique features. Maxilla 1 has a short palp; the distal endite bears 45‐40 setae, which might be used for scraping particles together. The laterodistal margins of the distal maxillipedal endites are curved anteriorly and could be used for brushing particles towards the other mouthparts. The midgut‐gland has four caeca; the ventral caeca are very short. The gut of the examined specimens contained only fine detritus and sand grains.