Hircella Mayer, 1882

Takeuchi, Ichiro & Lowry, James K., 2015, A taxonomic study on the Phtisicidae (Crustacea: Amphipoda) of New South Wales, Australia, Journal of Natural History 50, pp. 603-648 : 616

publication ID

https://doi.org/ 10.1080/00222933.2015.1079338

publication LSID

lsid:zoobank.org:pub:975EE532-0FAD-4D4F-8E18-9DF3B790953F

DOI

https://doi.org/10.5281/zenodo.4331267

persistent identifier

https://treatment.plazi.org/id/03BA87CC-FFC0-9C66-EFF8-73F4FBEBB56E

treatment provided by

Carolina

scientific name

Hircella Mayer, 1882
status

 

Genus Hircella Mayer, 1882 View in CoL

Diagnosis

Head fused with pereonite 1. Antenna 1 well developed, flagellum with more than two articles; accessory flagellum absent. Antenna 2 well developed; flagellum with two or three articles. Mandible well developed; molar absent; palp 3-articulate; palp setal formula 0 – x – 1. Maxilliped well developed; inner plate (basal endite) larger than outer plate (ischial endite); palp article 3 without distal projection; palp article 4 well developed. Pereonite 4 clavate appendage absent. Pereonites 6 and 7 not fused. Pereopod 3 absent. Pereopod 4 absent. Pereopod 5 present with one article. Pereopods 6 and 7 well developed, with seven articles. Gills on pereonites 2 to 4. Pleopods absent. Uropods 2 pairs; uropod 1, uniramous; uropod 2, uniramous. Telson (dorsal lobe) present.

Type species

Caprella cornigera Haswell, 1879b View in CoL , monotypy.

Included species

Hircella View in CoL includes three species: Hircella berentsae Guerra-García, 2006 View in CoL ; Hircella cornigera ( Haswell, 1879b) View in CoL ; Hircella inermis Guerra-García and Takeuchi, 2004 View in CoL .

Remarks

The genus Hircella was established specifically for H. cornigera ( Haswell, 1879b) by Mayer (1903). Recently, Guerra-García and Takeuchi (2004) described the second species of Hircella , H. inermis Guerra-García and Takeuchi, 2004 from the Tasmanian coast. Mayer (1903) mentioned that pereopod 5 of Hircella was completely degenerate, and the diagnosis of Takeuchi (1993) followed his conclusion. Since the type specimen deposited in the Australian Museum is lost ( Springthorpe and Lowry 1994), this new diagnosis is based on recently collected specimens from the Solitary Islands, New South Wales. Observation revealed that pereopod 5 is composed of one tiny article and the number of articles in the flagellum of antenna 2 increases from two to three during growth (see Figure 10 View Figure 10 ). Hence, the generic diagnosis of the present genus is revised as above.

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