Tanystylum tubirostrum Stock, 1954

Müller, Hans-Georg & Krapp, Franz, 2009, The pycnogonid fauna (Pycnogonida, Arthropoda) of the Tayrona National Park and adjoining areas on the Caribbean coast of Colombia 2319, Zootaxa 2319 (1), pp. 1-138 : 54-55

* Tanystylum tubirostrum Stock, 1954

Fig. 26

Tanystylum tubirostrum Stock, 1954: 117 .—Stock 1975: 984. Child 1979: 34. Child 1982: 363. Stock 1986: 402. Müller

1990: 67.

Material: 1 male, 4 females, 1 juv. ( USNM 170514 ), Panamá-Pacific; Panamá City, Patilla Beach , lower mesolittoral, from hydropolyps, 28.XI.1970, leg. A. A. Reimer.

Remarks: This species was not sampled in the research area, although its geographic distribution encompasses the Caribbean region. In order to differentiate it from nearly related Tanystylum isabellae we figure a male and a female. A clear differentiating character from all other congeners is the proboscis, which in its basal third is enlarged to a bottle shape, whereas the distal two thirds are slender and tube-like. In comparison to T. isabellae the tubercles on top of the coxae 1 are mostly not as definitely round and in part also branched.

Distribution: Predominantly found in the tropical western Atlantic from several localities (see Child 1982: 363). The only records from the Indo-Pacific regions are from Panamá ( Child 1979: 34) and Kenya ( Müller 1990c: 67).

Figures

FIGURE 26. Tanystylum tibirostrum Stock, 1954: A male dorsal, B female dorsal, C male proboscis ventral.