Synalpheus yano (Ríos and Duffy), Rios and Duffy

Iii, Kenneth S Macdonald, Hultgren, Kristin & Duffy, Emmett, 2009, The sponge-dwelling snapping shrimps (Crustacea, Decapoda, Alpheidae, Synalpheus) of Discovery Bay, Jamaica, with descriptions of four new species, Zootaxa 2199, pp. 1-57 : 51-53

Synalpheus yano (Ríos and Duffy)

Color plate 6A, B

Material examined. Jamaica: non-ovigerous individual, ovigerous female ( VIMS 08JAM4801,02), Columbus Park, Discovery Bay, from canals of Hymeniacidon caerulea . MaxCL ovigerous female: 3.32 mm. MaxCL non-ovigerous individual: 3.75 mm.

Color. Dull gold; darker in the distal portion of the major chela; embryos and ovaries brick red.

Hosts and ecology. This pair was found in the midnight-blue sponge Hymeniacidon caerulea . In Belize, S. yano is most commonly found in Lissodendoryx colombiensis , but is also found in H. caerulea and Calyx podatypa de Laubenfels.

PLATE 7. A, Pseudoceratina (Aiolochroia) crassa (08JAM32), including an unidentified soft, filmy grey-brown sponge lining the canals, fore-reef (near M1 channel marker), Discovery Bay, Jamaica. B, Auletta cf. sycinularia (08JAM27), external view, Dairy Bull Reef, Jamaica. C, Same, interior view. D, Agelas cf. clathrodes (08JAM61), external view, Columbus Park, Discovery Bay, Jamaica. E, Same, interior view. F, Agelas cf. dispar (08JAM82), interior view, Rio Buenos, Jamaica.

Distribution. Belize (Macdonald et al. 2006; Ríos and Duffy 2007); Jamaica (this study).

Remarks. Synalpheus yano is another member of the morphologically similar complex of species that includes S. pandionis , S. dardeaui , and S. ul. It can be distinguished by its complete lack of a blade on the scaphocerite, and by the equally sized spines of the distal margin of the telson.