Meterythrops pictus Holt and W. Tattersall, 1905

Fukuoka, Kouki & Murano, Masaaki, 2006, Taxonomy of the genus Meterythrops (Crustacea: Mysida: Mysidae), with a redescription of M. microphthalmus and descriptions of two new species, Journal of Natural History 40 (27 - 28), pp. 1641-1674 : 1651-1655

publication ID

https://doi.org/ 10.1080/00222930600956858

persistent identifier

https://treatment.plazi.org/id/860DB34F-270D-D526-CD6B-19CEFDD5FF4C

treatment provided by

Carolina

scientific name

Meterythrops pictus Holt and W. Tattersall, 1905
status

 

Meterythrops pictus Holt and W. Tattersall, 1905

( Figures 4 View Figure 4 , 12D View Figure 12 ) Meterythrops picta Holt and W. Tattersall 1905, p 116 –117, 143, Plate 19, Figures 5–7 View Figure 5 View Figure 6 View Figure 7 ,

Plate 25, Figures 8 View Figure 8 , 9 View Figure 9 ; 1906, p 23–24; Hansen 1908, p 107; Zimmer 1909, p 87–88,

Figures 173, 174; W. Tattersall 1911, p 28–29; Stephensen 1912, p 79–80; Illig 1930, p 428; Stephensen 1933, p 12; W. Tattersall 1951, p 113; W. Tattersall and O. Tattersall 1951, p 209–212, Figures 45B–F, 46; O. Tattersall 1955, p 117–118; Birstein and Tchindonova 1962, p 65–66; Ii 1964, p 314–319, Figures 81, 82; Murano 1970b, p 138– 139; 1971, p 47 (list); 1977, p 167–169, Figure 17; Müller 1993, p 123–124 (list).

Meterythrops indica Hansen 1910, p 63 –64; Illig 1930, p 428; W. Tattersall 1939, p 235; Pillai 1965, p 1706.

Meterythrops View in CoL affin. picta: Zimmer 1914, p 388 View in CoL .

Meterythrops affinis Coifmann 1936a, p 84 ; 1936b, p 36–38, Figure 24.

Material examined

Type material. BM (NH) 1905.6.6.4-5, type, one immature male (13 mm, damaged), off Achill , Ireland, about 700 m, tow-net on trawl-head, 24 August 1901 .

Material reported by Murano (1977). See Table II. On data, see Murano (1977). Other Japanese material. NSMT-Cr 16747, one female (9.5 mm), Sagami Bay (35 ° 06.19N, 139 ° 20.49E), central Japan, 0–470 m, oblique tow, ORI net, 24 January 1964, R / V Tansei- Maru cruise, coll. M. Murano. NSMT-Cr 16748, one female (damaged), Stn 193, north of Amami-oshima Island (29 ° 08.09N, 129 ° 39.19E), Amami Islands , southern Japan, 0– 1000 m, oblique tow, ORI net, 25 April 1970, R / V Tansei-Maru cruise, coll. M. Murano. NSMT-Cr 16749, one immature male (8.5 mm), one immature female (damaged), and two juveniles (5.1 and 7.2 mm), Stn H 154-3, west of Okinawa Island (26 ° 13.59N, 125 ° 13.09E), southern Japan, 0–900 m, oblique tow, ORI net, 12 May 1971, R / V Hakuho- Maru cruise, coll. M. Murano. NSMT-Cr 16750, one male (12.1 mm), Stn 222-6, west of Okinawa Island (26 ° 08.29N, 125 ° 12.09E), southern Japan, 0–1500 m, oblique tow, ORI net, 9 August 1974, R / V Hakuho-Maru cruise, coll. M. Murano. NSMT-Cr 16751, one immature male (5.2 mm) and 41 juveniles (2.7–4.9 mm), Tateyama Bay , Chiba, central Japan, 390 m, sledge net, 21 April 1990, TR/ V Seiyo-Maru cruise. NSMT-Cr 16752, one immature male (5.6 mm) and three juveniles (2.7 mm and damaged), Tateyama Bay , Chiba, central Japan, 490 m, sledge net, 21 April 1990, TR/ V Seiyo-Maru cruise GoogleMaps .

Indonesian material. NSMT-Cr 16753, two immature females (damaged), Timor Sea (09 ° 27.09S, 127 ° 58.69E), 610–690 m, plankton net installed at mouth of beam trawl, 18– 19 June 1972, R / V Hakuho-Maru cruise, coll. M. Murano. GoogleMaps NSMT-Cr 16754, one immature male (damaged), Sahul Shelf (12 ° 42.29S, 123 ° 07.69E), Timor Sea, 535–547 m, plankton net installed at mouth of beam trawl, 26 June 1972, R / V Hakuho-Maru cruise, coll. M. Murano. GoogleMaps

British material. Two males (damaged), two immature males (8.6 and 9.0 mm), three females (11.2 mm), and nine immature females (7.3–10.5 mm), Rockall Trough, western Ireland, date unknown, on loan from J. Mauchline.

Supplemental description

Penis 2.5 times as long as broad in lateral view, armed with about 15 short plumose setae on posterior margin and three short, naked setae near apex of posterolateral part; apex rounded armed with three long, mesially curved setae and a short seta ( Figure 4A View Figure 4 ).

Female with tuft of setae on sixth thoracopod and with developed oostegites on seventh and eighth thoracopods; oostegite on seventh thoracopod with baling lobe.

Fourth pleopodal endopod of male six-segmented; third, fourth, and fifth segments armed with modified seta at mesial distal angle, these setae extending beyond tip of terminal setae on ultimate segment, slightly thicker than others and furnished with fine setae on distal one-fourth ( Figure 4 View Figure 4 B–D). Fourth pleopodal exopod of male six-segmented, as long as endopod, without modified setae ( Figure 4B View Figure 4 ).

Fifth pleopodal endopod of male six-segmented, without modified setae ( Figure 4E View Figure 4 ). Fifth pleopodal exopod of male six-segmented, as long as endopod; fourth and fifth segments armed with modified seta at mesial distal corner, these modified setae with same setulation as those of endopod of fourth pleopod ( Figure 4E View Figure 4 ).

Distribution

This species is widely distributed in the meso- and bathypelagic zones deeper than 500 m of the Atlantic, Indian, and West Pacific Oceans: Ireland ( Holt and Tattersall 1905, 1906; Tattersall 1911), Iceland ( Hansen 1908), the Denmark Strait ( Stephensen 1912, 1933), Great Britain ( Tattersall and Tattersall 1951), South Africa ( Zimmer 1914; Illig 1930; Tattersall 1955), Sri Lanka ( Illig 1930), the Gulf of Aden ( Coifmann 1936b), northeastern USA ( Tattersall 1951), Somalia ( Birstein and Tchindonova 1962), Indonesia ( Pillai 1965; present study), the Arabian Sea ( Pillai 1965), and Japan ( Ii 1964; Murano 1977; present study).

This species was collected by trawl ( Holt and Tattersall 1905; Tattersall 1911; Stepehnsen 1933, present study), a net towed vertically or obliquely ( Hansen 1910; Illig 1930; Birstein and Tchindonova 1962; Ii 1964; Murano 1977; present study), and a bottom net ( Murano 1977).

Remarks

The presence of modified setae on the male pleopods and the components of the marsupium are reported for the first time.

BM

Bristol Museum

ORI

Ocean Research Institute

R

Departamento de Geologia, Universidad de Chile

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Mysida

Family

Mysidae

Genus

Meterythrops

Loc

Meterythrops pictus Holt and W. Tattersall, 1905

Fukuoka, Kouki & Murano, Masaaki 2006
2006
Loc

Meterythrops affinis

Coifmann 1936: 84
1936
Loc

picta:

Zimmer 1914: 388
1914
Loc

Meterythrops indica

Hansen 1910: 63
1910
Loc

Meterythrops

Smith 1879
1879
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