Babr nigromaculatus ( Dorogostaisky, 1922 )

Daneliya, Mikhail E., Kamaltynov, Ravil M., Kontula, Tytti & Väinölä, Risto, 2009, Systematics of the Baikalian Babr (Crustacea: Amphipoda: Pallaseidae), Zootaxa 2276, pp. 49-68 : 63-67

publication ID

https://doi.org/ 10.5281/zenodo.191076

DOI

https://doi.org/10.5281/zenodo.6219230

persistent identifier

https://treatment.plazi.org/id/03A687F1-8367-FF91-FF63-FA31FE6FFB8F

treatment provided by

Plazi

scientific name

Babr nigromaculatus ( Dorogostaisky, 1922 )
status

 

Babr nigromaculatus ( Dorogostaisky, 1922) View in CoL

( Figures 8−10 View FIGURE 8 View FIGURE 9 View FIGURE 10 )

Pallasea baikali nigromaculata Dorogostaisky, 1922: 125 View in CoL , Tab. 2, Fig. 5 View FIGURE 5 ; Pallasea baikali View in CoL (partim) Stebbing, 1906: 378;

Pallasea (Pallasea) baikali nigromaculata Bazikalova, 1945: 146 View in CoL ; Barnard & Barnard, 1983: 480; P. baikali Väinölä & Kamaltynov, 1999: 951 View in CoL [“ P.baikali View in CoL S”];

P. (Pallasea) baikali nigromaculata Takhteev, 2000: 60 View in CoL ;

Babr nigromaculatus Kamaltynov, 2002: 757 View in CoL .

Type specimens. Lectotype, female, 21 mm, “fabrika Sibiryakova, 19-VII- 15 g, glubina 20 mt, draga, V. Dorogostaisky” ( ZIN, 1/88438). Paralectotypes: 3 females, 21 mm, “fabrika Sibiryakova, 19-VII- 15 g, glubina 20 mt, draga, V. Dorogostaisky” ( ZIN, 1/50202); 1 female, 21 mm, “det. V. Dorogostaisky” (LIN, 865).

Additional material examined. Kultuk (S, 51°43´N, 103°43´E), 15 m, sand, 16.06.1915, coll. Dorogostaisky (mor: 1 ZIN 1/88438);

Kultuk (S), 51°43´N, 103°43´E, 4−14 m, sand, 28.09.1997 coll. RMK & RV (mor: 1; all: 6; mtD: 1);

Kultuk (S), 51°43´N, 103°43´E, 5−10m, sand, 14.09.1998, coll. RV (all: 1; mtD: 1);

Sennaya Bay (S), 52°16´19´´ N, 105°43´40´´ E, 16−17 m, 0 5.2006, coll. J. Smith (mor: 7 MZH 53159, 53172; mtD: 3);

Peschanaya Bay (S), 52°15´N, 105°42´E (st. 91-1), 7−10 m, 14.08.1991 coll. RMK & RV (all: 8; mtD: 1);

Baikal (S/C), 8.1991 coll. RMK & RV (mor: 1 MZH 53164);

Cape Telegrafny (S, 51°35´N, 103°56´E), coll. Botkin (mor: 1 ZIN 4/88442);

Cape Ulan-Koblit (unknown locality), 18 m, mud, algae, 31.07.1916 coll. Bazikalova (mor: 1 ZIN 5/ 88444);

Olkhon Strait (C/N), 53°00´N, 106°53´E (st. 91-2), 30−35 m, 17.08.1991 coll. RMK & RV (all: 1);

Olkhon Strait (C/N), 53°00´N, 106°53´E (st. 99-65), 20 m, 28.7.1999, coll. RMK & RV (mtD: 2);

Olkhon Strait (C/N), 53°02´N, 106°53´E (st. 09-52), Kurkut Bay, 7.5-11.4 m, 0 3.07.2009, coll. MED, RV, Zagibalova (mor: 1 MZH 53171; mtD: 1)

Uzury (Olkhon Island; C), 53°21´52´´ N, 107°46´20´´ E (st. 07-17), 16 m, sand, 0 7.08.2007, coll. MED & RV (mor: 9 MZH 53167; mtD: 3);

Kocherikova (N), 53°43´N, 107°49´E (st. 07-23), 20 m, sand, 0 8.08.2007, coll. MED & RV, divers (mor: 1 MZH 53169; mtD: 1);

Davsha Bay (N), 54°21´40´´ N, 109°28´15´´ E (st. 07-31), 10 m, sand, 0 9.08.2007, coll. MED & RV (mor: 2 MZH 53168; mtD: 2);

Tukkaralagda Cape (N, 55°26´N, 109°49´E), st. 1351, 5 m, coarse sand, 15.07.1959, coll. Bazikalova (mor: 1 LIN 866);

1 km S from mouth of Malaya Cheremshana River (N), 54°00´N, 109°24´E (st. 99-39), 15–25 m, 25.7.1999, coll. RMK & RV (mor:1; mtD: 2);

Turka (C), 52°56´N, 108°12´E (st. 07-53), 10 m, sand, 12.08.2007, coll. RV & MED (mor: 7 MZH 53166; mtD: 5);

Gremyachinsk (C), 52°40´N, 107°58´E (st. 00-43), 14–16 m, sand, 27.09.2000, coll. RMK & RV (mor: 1 MZH 53163; mtD: 3);

Manturikha (S, 51°56´N, 105°46´E), st. 610, N2941, 21.08.1925, coll. Bazikalova (mor: 1 ZIN 3/88441).

Type locality. Lake Baikal, Sennaya Bay near Bolshie Koty, where Sibiryakov’s factory was situated, 51°53´N, 105°04´E (see Drizhenko, 1908); specified here.

Diagnosis. Marginal prominences of head shorter than marginal prominences of pereonites, blunt ( Fig. 9 View FIGURE 9 b). Uronite 1 with dorso-lateral spine-setae ( Fig. 9 View FIGURE 9 c). Antenna 1 equal to or longer than half of body length (0.5−0.6 times body length) ( Fig. 9 View FIGURE 9 a). Antenna 1 peduncle segment 1 slightly shorter than segment 2. Antenna 2 peduncle segment 4 slightly shorter than segment 5 ( Fig. 9 View FIGURE 9 a). Mandibular palp segment 1 with one–three ventral setae; segment 3 with 24 to 45 short ventral spine-setae. Coxa 4 with convex distal margin ( Fig. 9 View FIGURE 9 a). Posterior margin of pereopod 6 basis clearly concave ( Fig. 10 View FIGURE 10 c). Uropod 3 about as long as urosome ( Fig. 9 View FIGURE 9 c). Uropod 3 rami subequal in length ( Fig. 10 View FIGURE 10 f).

Color greenish-yellowish, with dark-orange or brown spots. Pereonites 1−3 with wide dorso-lateral spots. Pereonites 4 and 5 without dorso-lateral spots. ( Fig. 8 View FIGURE 8 a, b).

Body length of adult individuals 21−36 mm.

Description of lectotype. Fitting the specific and generic diagnoses above, with following specifications. Marginal prominences of pereonites 1−5 blunt and hooked. Uronite 1 with two and three, uronite 2 and 3 with two dorso-lateral spine-setae on each side. Antenna 1 longer than half of body length (0.6 times body length). Antenna 1 peduncle segment 2 slightly longer than segments 1 and 3. Antenna 1 flagellum with 22 subsegments. Mandibular palp segment 1 with one ventral seta; segment 2 about as long as segment 3; segment 3 with 24 short ventral spine-setae. Uropod 3 exopod 1.1 times as long as endopod.

DNA. Mitochondrial DNA lineage typified by the sequence of a fragment of the COI gene deposited in GenBank with accession no GQ919202 View Materials (from a specimen from Sennaya Bay, MZH 53172), from which conspecific specimens may differ at up to 2.8 % of nucleotide sites, whereas any heterospecific individuals at least 15 %.

Allozymes. Distinguished from B. baikali by having electrophoretically slower allozymes of the enzymes ENO, MDH-1 and PGD, and electrophoretically faster ones of AAT-2, AP, ARK, IDH-1, IDH-2, MDH-2 and PGM (Table 1).

Distribution and habitat. Throughout the coasts of Baikal ( Fig. 1 View FIGURE 1 b), on sandy bottoms at 5−35 m depth, typically deeper than 10 m.

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

MZH

Finnish Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Pallaseidae

Genus

Babr

Loc

Babr nigromaculatus ( Dorogostaisky, 1922 )

Daneliya, Mikhail E., Kamaltynov, Ravil M., Kontula, Tytti & Väinölä, Risto 2009
2009
Loc

Babr nigromaculatus

Kamaltynov 2002: 757
2002
Loc

P. (Pallasea) baikali nigromaculata

Takhteev 2000: 60
2000
Loc

Pallasea (Pallasea) baikali nigromaculata

Vainola 1999: 951
Barnard 1983: 480
Bazikalova 1945: 146
1945
Loc

Pallasea baikali nigromaculata

Dorogostaisky 1922: 125
Stebbing 1906: 378
1922
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