Anoplodactylus monotrema Stock, 1979
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https://doi.org/10.5281/zenodo.16850989 |
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https://treatment.plazi.org/id/CE051E59-203C-FFCD-1DAF-FD4A8E7DFBE2 |
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Felipe |
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Anoplodactylus monotrema Stock |
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Anoplodactylus monotrema Stock View in CoL
Anoplodactylus monotrema Stock, 1979: 15-18 View in CoL , figs 4-5
Material. Adult ♀ (ZSM-A- 20071605); Casa Grisales, Bahia del Rodadero, Santa Marta ; from stone with algae, 0.5 m, 10.12.2004 ; Juvenile ♁ (ZSM-A- 20071606); Playa Brava, Bahia de Taganga, Santa Marta; under stone, 0.5 m, 09.12.2004 .
Description ( Figs 14 View Fig , 15 View Fig )
Living animal coloured yellowish to orange.Ganglia and gut well visible ( Fig. 14B View Fig ). Body oval, wide and robust ( Figs 14A View Fig , 15A View Fig ). Segmentation reduced ( Fig. 15A View Fig ). A small hair inserted distally on each segment. Walking legs also robust ( Fig. 15A,G View Fig ).
Eye tubercle flat, only slightly higher than wide ( Figs 14B,C View Fig , 15D View Fig ). Eyes strongly pigmented ( Fig. 14C View Fig ). Apical sense organ at the tip and 2 lateral sense organs present ( Fig. 15D View Fig ). Proboscis short and frontally flattened ( Fig. 14D View Fig ).
Abdomen of almost same height as eye tubercle; several hairs close to anus ( Fig. 15A,E View Fig ).
Chelifores 2-jointed, article 1 larger ( Fig. 15B View Fig ). Chelae relatively strong, located directly on top of mouth. Several small, pointed teeth at inner sides of the fingers ( Fig. 15C View Fig ), several hairs distributed all over them.
Ovigera with 2 to 3 articles; borders between them not well visible ( Fig. 14D View Fig ).
Coxa 1 with distal groove and 2 laterodistal hairs. Coxa 2 and 3 of same length, deprived of grooves and hairs. Femur 2× as long as coxa 3; distal protrusion with spine at tip. Tibia 1 similar to femur, distal protrusion with spine also present. Tibia 2 thinner than tibia 1. At ¾ of its length, a protuberance with spine is seen ( Fig. 15G View Fig ).Tarsus 2× as wide as high, with lots of hairs ( Fig. 15F,H View Fig ). Propodus robust, slightly curved ( Figs 14E View Fig , 15F,H View Fig ). Heel with 2 strong spines and 2 setae neighbouring them ( Fig. 15I View Fig ). Sole with medial row of small spade-shaped spines ( Fig. 15F View Fig ) and 2 lateral rows of hairs with rounded tips ( Fig. 14E View Fig ). Main claw 0.75× as long as propodus. Accessory claws very short and rudimentary ( Fig. 15F,H View Fig ).
Remarks. Our Colombian individuals of Anoplodactylus monotrema are well characterized by propodus characters and the absence of coxal spines. The heel spines described here are missing in earlier descriptions. Most remarkable are the spade-shaped spines of the sole that are of different form than those of the heel. Ovigera composed of 5 articles found in males of this species seem to be fully developed late in ontogeny, as our subadult male had only 2 to 3 articles that were hard to distinguish. This species has often been mixed with Anoplodactylus robustus (Dohrn 1881) .A good differential character, however, is the toothed finger of the chelae.
A. monotrema is distributed in the Western Atlantic Ocean from Florida to Brazil, and the first record for Colombia is that of Müller (1990).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Anoplodactylus monotrema Stock
| Bravo, Maria Fernanda Montoya, Müller, Hans-Georg, Arango, Claudia P., Tigreros, Paulo & Melzer, Roland R. 2009 |
Anoplodactylus monotrema
| Stock 1979: 15 - 18 |