Boreomysis

Daneliya, Mikhail E., 2023, Mysid Subfamily Boreomysinae (Crustacea: Mysida: Mysidae) in the Southeast Australian Deep-sea, Records of the Australian Museum (Rec. Aust. Mus.) 75 (2), pp. 87-124 : 93

publication ID	https://doi.org/10.3853/j.2201-4349.75.2023.1845
publication LSID	lsid:zoobank.org:pub:EF636B76-F39E-4AC6-AAD6-5673FC1350F8
persistent identifier	https://treatment.plazi.org/id/0B796549-8B7F-4BF8-98D1-2E566C9095C3
taxon LSID	lsid:zoobank.org:act:0B796549-8B7F-4BF8-98D1-2E566C9095C3
treatment provided by	Felipe (2023-05-02 15:54:09, last updated by Plazi 2023-11-09 01:39:34)
scientific name	Boreomysis
status	sensu stricto

Treatment

Key to the Australian species of the subgenus Boreomysis View in CoL View at ENA sensu stricto

1 Telson cleft without anterior fissure ( Figs 1C,D View Figure 1 ; 4F–H View Figure 4 ) ........................................................... 2

—— Telson cleft with anterior fissure ( Fig. 5C,E View Figure 5 ) ..................................... B. (B.) sphaerops Ii, 1964 View in CoL

2 Anterior margin of carapace with rounded lateral margins ( Fig. 4D View Figure 4 ). Antennal scale rather broad, 3.3–4.2 times as long as wide; outer spine without additional spinules ( Fig. 4D,I View Figure 4 ) ...................... B. (B.) sibogae Hansen, 1910 View in CoL

—— Anterior margin of carapace with angular lateral margins ( Fig. 1B View Figure 1 ). Antennal scale rather narrow, 4.7–5.5 times as long as wide; outer spine with additional spinules ( Fig. 1B,J,K,L View Figure 1 ) .......................... B. (B.) inopinata sp. nov.

References

Ii, N. 1964. Fauna Japonica, Mysidae (Crustacea). Biogeographical Society of Japan.

Figures

Figure 1. Boreomysis (Boreomysis) inopinata sp. nov., holotype, male, 31 mm, AM P.106632. (A) habitus, lateral; (B) head, dorsal; (C) posterior part of body, dorsal;(D) posterior part of telson, dorsal; (E) posterior margin of abdomen, lateral; (F) posteriormargin of abdomen and proximal part of uropod (left side), ventral; (G) eye cornea, frontal; (H) antennular peduncle, medial; (I) male process of antennula, posterior; (J) antennal peduncle and scale, posterior; (K) distal part of antennal scale; (L) distolateral spine of antennal scale; (M) antennal peduncle, lateral; (N) uropod, ventral. Scales (mm):A, B = 10.0; C, E, F, N = 1.0; D, H, I, K, L (same scale as for K) = 0.5; G, J, M = 0.25.

Figure 4. Boreomysis (Boreomysis) sibogae. (A, D–G, I–K) female,31 mm, Tasmania,AMP.101174;(B) subadult male, New South Wales, AM P.106643; (C) juvenile, New South Wales,AM P.106640; (H) subadult male, New South Wales,AM P.106642. (A) head, lateral; (B) rostrum and eyes, lateral; (C) rostrum and eyes, lateral; (D) head, dorsal; (E) posterior margin of abdomen, lateral; (F) posterior margin of abdomen and telson (lateral spiniform setae not shown), dorsal; (G) posterior part of telson; (H) telson; (I) antennal scale; (J) uropodal endopod, ventral; (K) uropodal exopod (most of setae not shown); (L) pereopod 1 endopod, posterior. Scales (mm): 1.0.

Figure 5. Boreomysis (Boreomysis) sphaerops. (A–F, H–N) subadult female, New South Wales, AM P.106636; (G) subadult male, New South Wales,AM P.106637. (A) head, dorsal (antennal scale spine missing); (B) head, lateral; (C) posterior part of abdomen with telson and uropods (setae not shown), dorsal;(D) posterior margin of abdomen,lateral;(E) posterior part of telson;(F) antennal scale (distolateral spine missing); (G) distal part of antennal scale; (H) labrum,ventral;(I) mandibular palp, posterior;(J) left mandible, ventral; (K) right mandible, dorsal; (L) pars centralis of right mandible; (M) maxilla 1, posterior; (N) maxilla 2, posterior. Scales (mm):A–K, M, N = 1.0; L = 0.25.