Pasiphaea

Rodrigues, Thaiana G. A. & Cardoso, Irene A., 2019, First record of four Pasiphaea Savigny, 1816 (Crustacea, Decapoda, Pasiphaeidae) species from the southwestern Atlantic, Zootaxa 4560 (2), pp. 321-330: 329

publication ID

https://doi.org/10.11646/zootaxa.4560.2.5

publication LSID

lsid:zoobank.org:pub:CCAA093B-D187-4178-8762-25D12866DFF9

persistent identifier

http://treatment.plazi.org/id/03BAB566-FF8B-0E4B-FF57-FF37FA05FCAF

treatment provided by

Plazi

scientific name

Pasiphaea
status

 

Key to the deep-sea Pasiphaea  species of the Southwestern Atlantic

1 Posterior margin of the telson forked or slightly forked....................................................... 2

- Posterior margin of telson truncate........................................................................ 3

2 Rostrum with basal slit................................................................................. 4

- Rostrum without basal slit............................................................................... 5

3 Second and third abdominal somites dorsally carinate. Merus of first pereopod unarmed. Merus of second pereopod with 1 spine on distal third......................................................... Pasiphaea merriami Schmitt, 1931 

- Second and third abdominal somites dorsally rounded. Merus of first pereopod with 8–12 spines. Merus of second pereopod with 18–20 spines............................................... Pasiphaea taiwanica Komai et al., 2012  ( Fig. 3View FIGURE 3)

4 Apex of rostrum not reaching or sometimes overreaching anterodorsal margin of carapace; deeply forked posterior margin of telson. First pereopod with 2–10 spines on merus. Second pereopod with 10–20 spines on merus............................................................................................. Pasiphaea major Hayashi, 2006  ( Fig. 2View FIGURE 2)

- Apex of rostrum distinctly overreaching anterodorsal margin of carapace; moderately or deeply forked posterior margin of telson. First pereopod with 4–8 spines on merus. Second pereopod with 13–24 spines on merus................................................................................................. Pasiphaea tarda Krøyer, 1845  ( Fig. 4View FIGURE 4)

5 Apex of rostrum not reaching anterodorsal margin of carapace............ Pasiphaea alcocki ( Wood-Mason, 1891)  ( Fig. 1View FIGURE 1)

- Apex of rostrum reaching anterodorsal margin of carapace..................................................... 6

6 Slightly forked posterior margin of the telson. First pereopod with 3–6 spines on merus. Second pereopod with 10–14 spines on merus............................................................. Pasiphaea antea Rodrigues et al., 2018 

- Forked posterior margin of the telson. First pereopod unarmed on merus. Second pereopod with 5 spines on merus.................................................................................... Pasiphaea princeps Smith, 1884