Pasiphaea taiwanica Komai, Lin & Chan, 2012

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: 323-324

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-FF81-0E40-FF57-F8A6FABFFC46

treatment provided by

Plazi

scientific name

Pasiphaea taiwanica Komai, Lin & Chan, 2012
status

 

Pasiphaea taiwanica Komai, Lin & Chan, 2012 

( Figure 3View FIGURE 3)

Pasiphaea taiwanica Komai et al., 2012: 318  –324; figs. 18–20.

Material Examined: REVIZEE. St. 0 520, 13°21.837’S, 38°16.683’W, 2137m, 1 ovigerous female (30.19mm), MNRJ 27932.

Diagnosis. Body moderately hard. Rostrum without slit at base, relatively wide, directed forward, ending in sharp tooth that reaches anterodorsal margin of carapace; anterior margin faintly sinuous inferiorly ( Fig. 3A, BView FIGURE 3). Carapace not carinate except for short carina supporting rostrum, dorsal margin in lateral view slightly sinuous ( Fig. 3AView FIGURE 3). Branchiostegal sinus deep; branquiostegal spine small and submarginal, overreaching anterolateral margin ( Fig. 3AView FIGURE 3). First pereopod with 8–12 spines on merus, unarmed on ischium, with posterodistal tooth on basis ( Fig. 3CView FIGURE 3). Second pereopod with merus with 18–20 spines, unarmed on ischium and basis, posterodistal tooth on basis ( Fig. 3DView FIGURE 3). First to third and fifth abdominal somites rounded dorsally; fourth abdominal somite rounded in anterior half, flattened in posterior half; sixth abdominal somite rounded posteriorly and flattened anteriorly ( Fig. 3E, FView FIGURE 3). Telson shallowly grooved in dorsal midline; posterior margin truncate with 4 pairs of spines ( Fig. 3G, HView FIGURE 3); telson longer than sixth somite. Pleurobranch on eighth thoracic somite normally developed (modified from Komai et al., 2012).

Distribution. Type locality: Pacific Ocean: Southwestern Taiwan (21°47.35’N, 120°29.7’E). Atlantic Ocean, Brazil (Bahia). Depth: 226 – 2137m.

Remarks: The material herein examined agrees with Komai et al. (2012) description in all features except by the number of spines in the merus of the first and second pereopods: first pereopod with 10–12 spines in the Brazilian material ( Fig. 3CView FIGURE 3) while Komai et al. (2012) observed 8 spines in the Taiwan material; second pereopod with 18–20 spines in the Brazilian material ( Fig. 3DView FIGURE 3) vs. 18–19 spines in the Taiwan material. The material examined features 4 pairs of spines were observed in the telson ( Fig. 3HView FIGURE 3), while the specimen analyzed by Komai et al. (2012) has the telson damaged.

Pasiphaea taiwanica  was not assigned to any species group and is close related to Pasiphaea chacei Yaldwyn, 1962  , P. falx Komai, Lin & Chan, 2012  and P. aequus Komai, Lin & Chan, 2012  (Komai et al., 2012). Pasiphaea chacei  differs from P. taiwanica  by the rostrum elongate, far overreaching the posterior margin of the carapace. Pasiphaea taiwanica  differs from P. falx  and P. aequus  by the first pereopod with strong palm ( Fig. 3CView FIGURE 3).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Pasiphaeidae

Genus

Pasiphaea

Loc

Pasiphaea taiwanica Komai, Lin & Chan, 2012

Rodrigues, Thaiana G. A. & Cardoso, Irene A. 2019
2019
Loc

Pasiphaea taiwanica

Komai 2012: 318
2012
Loc

P. falx

Komai, Lin & Chan 2012
2012
Loc

P. aequus

Komai, Lin & Chan 2012
2012
Loc

P. falx

Komai, Lin & Chan 2012
2012
Loc

P. aequus

Komai, Lin & Chan 2012
2012
Loc

Pasiphaea chacei

Yaldwyn 1962
1962
Loc

Pasiphaea chacei

Yaldwyn 1962
1962