Setae for Gill-Cleaning of Six Species of Japanese Sentinel Crabs (Macrophthalmus)

Takashi Matsuoka; Hiroshi Suzuki; Miguel Vazquez Archdale

doi:10.1651/11-3480.1

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Takashi Matsuoka,^1,* Hiroshi Suzuki,^2,** Miguel Vazquez Archdale^3,***

¹aUnited Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima
²bFaculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima 890-0056, Japan
³cFaculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima 890-0056, Japan

^*(TM, k2216439@kadai.jp)
^**(HS, corresponding author, suzuki@fish.kagoshima-u.ac.jp)
^***(MA, corresponding author, miguel@fish.kagoshima-u.ac.jp)

Abstract

The setae involved in the gill-cleaning mechanism of six species of Japanese sentinel crabs are described. The setae are classified as belonging to five types: anchor, serrate, simple, digitate-scale-setule, and normal setule setae. The anchor setae are further divided into ten sub types based on the combinations of digitate-scale setule, normal setule, anchor type, and the shape of their tip. Setae on out-growths and tips were compared with those identified in previous studies. As a result, the single row half anchor setae were found only in the subgenus Macrophthalmus and might be used as a special characteristic in the subgenus.

Citation Download Citation

Takashi Matsuoka, Hiroshi Suzuki, and Miguel Vazquez Archdale "Setae for Gill-Cleaning of Six Species of Japanese Sentinel Crabs (Macrophthalmus)," Journal of Crustacean Biology 31(4), 598-605, (1 October 2011). https://doi.org/10.1651/11-3480.1

Received: 2 February 2011; Accepted: 1 April 2011; Published: 1 October 2011