Notorhinus sp.

Moritz, Leif & Parra-Gomez, Antonio, 2023, Notorhinus floresi sp. nov. gen. nov.: The first records of Siphonophorida in Chile and Siphonorhinidae in South America (Colobognatha), Arthropod Systematics & amp; Phylogeny 81, pp. 565-579 : 565

3.1.4. Notorhinus sp.

Figs 7 , 8

Material examined.

1♀ (MNHNC 8390); CHILE: Biobío, El Natri, Lanalhue, Contulmo ; 37.9°S 73.27°W; 23.iv.2020; Edgardo Flores leg. (e27).

Remarks.

Body elongate and thread-like, pale white (Fig. 7 ), 11.5 mm long, 0.37 mm wide, br80+T. Head pyriform (Fig. 8A ) with incised labrum (Fig. 8B ) and antennae elbowed between antennomere 4 and 5 (Fig. 8C ). Sensilla basiconica on antennomere 5 absent, sensilla basiconica on antennomere 6 arranged in oval field (Fig. 8C ), 6 spiniform sensilla basiconica on antennomere 7 arranged in single row (Fig. 8D ) (2 rows in N. floresi sp. nov.). Lateral metazonal sculpturing present (Fig. 8F ). Two backwards projecting spines behind the ozopores and 3 setae between spines (Fig. 8G ) as present in N. floresi sp. nov. Fluke-shaped projections on the posterior margin of metazonites (limbus) (Fig. 8H ) as in N. floresi sp. nov. Because only a single female specimen of Notorhinus sp. (MNHNC 8390) is known, we refrain from describing it as a new species until male specimens are available.

Figures

Figure 7. Notorhinus sp., female (MNHNC 8390). A Habitus, lateral view. B Head and anterior body, lateral view.

Figure 8. Notorhinus sp., female (MNHNC 8390), SEM. A Head and anterior body-rings, frontal view. B Apical parts of gnathochilarium and labrum, ventral view. C Left antenna, lateral view. D Antennomere 7 with apical sensory structures. E Tarsal claw of mid-body leg. F Mid-body tergite, dorsal view. G Ozopore, lateral view, arrows indicate spines behind ozopore. H Posterior tergal margin (limbus), dorsal view, arrow indicates fluke-shaped sculpture. I Posterior body-rings and telson, ventral view. Abbreviations: I-VII = antennomeres, ac = apical cone, cl = tarsal claw, co = collum, ep = epicranium, fh = forehead, gn = gnathochilarium, hp = hypoproct, L 1 = leg-pair 1, L 2 = leg-pair 2, la = labrum, LL = lamella lingualis, md = mandible gnathal lobe, me = mentum, mz = metazonite, oz = ozopore, pp = paraproct, pr = preanal ring, pz = prozonite, sb = sensilla basiconica, ssb = spiniform sensilla basiconica, sti = gnathochilarial stipes, ta = tarsus.