Pasiphaea tarda Kroyer 1845
- Dataset
- First record of four Pasiphaea Savigny, 1816 (Crustacea, Decapoda, Pasiphaeidae) species from the southwestern Atlantic
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Malacostraca
- order
- Decapoda
- family
- Pasiphaeidae
- genus
- Pasiphaea
- species
- Pasiphaea tarda
description
(Figure 4)
diagnosis
Diagnosis: Body soft, but not fragile. Rostrum short, with basal slit; apex distinctly overreaching anterodorsal margin of carapace. Carapace acutely carinate with shallow depression at each side of rostral base (Fig. 4 A, B). Branchiostegal sinus deep; branchiostegal spine small, marginal (Fig. 4 A). First pereopod with 4 – 8 spines on merus, unarmed on ischium and basis, posterodistal angle of basis produced, but not dentiform (Fig. 4 C). Second pereopod with 13 – 24 spines on merus, 0 – 1 spine on ischium and 1 – 7 spines and posterodistal tooth on basis (Fig. 4 D). First abdominal somite with dorsal carina on distal half; second to fifth abdominal somites carinate; sixth abdominal somite with dorsal carina on proximal half (Fig. 4 E, F). Telson grooved in dorsal midline, posterior margin moderately or deeply forked, with 8 – 12 pairs of spines (Fig. 4 G, H); telson shorter than sixth somite. Pleurobranch on the eighth thoracic somite (modified from Hayashi, 2006 a).
discussion
Remarks: Pasiphaea tarda is included in P. alcocki species group and differs from its close related species Pasiphaea multidentata Esmark, 1866 by the basis of second pereopod with 2 – 4 spines (Fig. 4 D) vs. more than 6 spines (Fig. 4 A) (Matthews & Pinnoi, 1973).
distribution
Distribution: Type locality: Atlantic Ocean, South Greenland (unknown location). Southern Canary Islands, South Carolina (American coast) and Angola. New record: Brazil (Espírito Santo). Depth: 250 – 2400 m.
materials_examined
Material Examined. REVIZEE, St. 0 506, 19 ° 42.716 ’ S, 38 ° 36.497 ’ W, 935 m, 1 female (70.44 mm), MNRJ 13737; St. 0 524, 19 ° 43.663´S, 38 ° 39.838 ’ W, 925 m, 1 male (47.33 mm), MNRJ 14605; St. 0 535, 19 ° 58.936 ’ S, 39 ° 38.657 ’ W, 1002 m, 1 female (68.27 mm), MNRJ 26957. HABITATS, St. 13, 989 m, 1 female (78.73 mm), MNRJ 26956.
Name
- Homonyms
- Pasiphaea tarda Kroyer 1845