Pseudopallene chevron Staples 2007

Arango, Claudia P., 2009, New species and new records of sea spiders (Arthropoda: Pycnogonida) from deep waters in Western Australia, Zootaxa 1977, pp. 1-20 : 9

Pseudopallene chevron Staples 2007

Pseudopallene chevron . — Staples 2007: 99, Fig. 2 .

Material: AM P73290, 1 female. 22 November 2005, Albany, Western Australia, CSIRO station 022-126, collected by Sherman sled from 35.3350°S 118.2940°E to 35.3366°S 118.2900°E, soft and hard bottoms, 100 m.

Remarks: This specimen mostly agrees with the description of the holotype, a male specimen from South Australia. Red dorsal markings proposed as diagnostic character ( Staples 2007) are not evident in this preserved female, instead scattered traces of red pigmentation are observed dorsally on trunk and legs. The shape of ocular tubercle, neck and proboscis agree well with those in the male, also the abdomen, although only slightly constricted distally, and the shape of chelae fingers with linear cutting edge, but no strong setae are observed. Ovigers are glabrous, with no simple spines as described for the male. The strigilis spine formula is 14:8:9:7 and the terminal claw has 18 teeth. The configuration of the propodus agrees totally with that of the holotype; the main claw is long, about ¾ the propodal length.

Figures

FIGURE 2. Comparison of diagnostic characters in Rhopalorhynchus sibogae and R. tenuissimum. A. Proboscis of juvenile of R. tenuissimum, QM S 910 (dash line shows where it is broken) in Staples (1982). B. Proboscis of juvenile of R. sibogae WAM 70 - 3942 in Child (1975). C. Proboscis of female R. sibogae AM P 72804 in this study. D. Proboscis of male R. sibogae AM P 72807 in this study. E. Palp of female R. sibogae AM P 72804. F. Palp of juvenile R. sibogae WAM 70 - 3942.