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FIGURE 15 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 15. Atetrapachylasma dijonesae gen. et sp. nov., appendages: A, mandible; B, first maxillae; C, second maxilla; D, intermediate articles of cirrus VI; and E, crest of labrum flanked by left palp.
FIGURE 12 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 12. Atetrapachylasma dijonesae gen. et sp. nov., exploded four-plated wall arranged from loose plates, type lot: A, exterior of a rostrum; B and D, left and right carinolaterals; C, a carina; and E, the interior of a portion of a rostrum. Note the variably pronounced depression in the sheath of rostrum (E), which, together with the edges of the carinolateral alae, receives the rostral ends of the occludent ridges of the scuta (Figs 9A; 11C, D).
FIGURE 7 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 7. The holotype and paratype of Calantica moskalevi Zevina and Galkin, 1989: 134, Fig. 1) consisted of two juveniles (measurements below in mm).
FIGURE 11 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 11. Atetrapachylasma dijonesae gen. et sp. nov. holotype: A, exterior view of female with males; note largely exposed alae and the pair of males on each side of the tight fitting occludent ridges of the scuta. B, interior view of the same female, note the tight fit of the bearing surfaces of the alae on the adjacent plates, and the close fit of the sutures between plates, especially between the opercular plates and the interior of the orifice.
FIGURE 4 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 4. Numerous females of Atetrapachylasma dijonesae gen. et sp. nov. in situ on pillow basalt from 2080 m of depth on Vance B Seamount, with nozzle of suction sampler on ROV Tiburon to their right (distance between red laser dots 30 cm). The pristine white appearance of the dead shells accumulating at the base of the slope, as well as of the living individuals, suggests that there is little if any hydrothermal activity nearby to stain them (rather than the barnacle just being short lived, which they are). Thus, as might be expected, dissection revealed feeding appendages (Fig. 13) of the deep-sea rather than hydrothermal type. N.B.: Inspection of MPEGs taken by ROV Tiburon during collection of most of the barnacles seen in this frame (also, Fig. 5) detected no loss of material in the process. Therefore, it can be said with confidence that the shell fragments at the base of the basalt below the barnacles represent natural, postmortem accumulations.
FIGURE 2 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 2. Panorama in the caldera of Axial Seamount, at approximately 1434 m of depth. Several yellowish-brown clumps and a few scatters individuals of the stalked barnacle, Calantica moskalevi Zevina and Galkin, 1989, can be seen at roughly 9, 12 and 3 o'clock of the right red laser dot (distance between red laser dots 30 cm).
FIGURE 14 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 14. Atetrapachylasma dijonesae gen. et sp. nov., dwarf males: A, viewed obliquely (R-C axis running between 10:30 and 4:30 o'clock); B, another individual, viewed from the carinal end, leaning markedly to its right, toward the aperture of the female (see Fig. 9 for four males in situ). Note that the chitinous primary wall is made up of four plates, with the rostrum overlapping the carinolaterals. There is no indication of sutures in the rostrum or the carinolaterals of the male or the female.
FIGURE 3 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 3. Group of several adult hermaphrodites of Calantica moskalevi Zevina and Galkin, 1989 in situ in the caldera of Axial Seamount (Fig. 1). The upper barnacle has its cirral net deployed for passive feeding in gentle currents. The cuticle of the barnacles, stained yellow-brown to gold apparently by ferromanganese oxides from venting 200 meters of so away, has sloughed off the apexes of some of the capitular plates, exposing the underlying calcitic shell to corrosion. Dissection reveals feeding appendages (Fig. 8) of the deep-sea rather than hydrothermal type.
FIGURE 13 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 13. Atetrapachylasma dijonesae gen. et sp. nov., opercular plates of female: A and B, interior and exterior of terga, and C and D, interior and exterior of scuta. Both the terga and scuta are isosceles triangles, the bases of which are formed by their occludent margins. Note that the weakly developed articular ridges and furrows, as well as the lack of adductor and depressor muscle crests (apodemes), pits or scars, are remarkable. Comparably simple opercular plates are seen in no other balanomorph.
FIGURE 10 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 10. Calantica moskalevi Zevina and Galkin, 1989; appendages, first topotype: A, portion of crest of labrum with left palp attached; B, mandible; C, first maxillae; D, second maxilla; E, intermediate articles of cirrus VI; and F, penis still attached to the coxal portion of pedicle of the left sixth cirrus.
FIGURE 16 in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 16. Distributional map: Locality for the calanticid, Calantica moskalevi Zevina and Galkin, 1989, and the pachylasmatine, Atetrapachylasma dijonesae gen. et sp. nov., from approximately 1400 and 2000 m depths, respectively, in the NE Pacific (arrow; cf. Fig. 1), and general localities for their closest living relatives, Calantica spp (closed circles, from list of species in text) and Tetrapachylasma spp (closed triangles, after Jones 2000), from shallow to moderated depths in the I-WP. More generalized calanticids, Scillaelepas spp, occur at bathy-abyssal depths in all except high latitude oceans, whereas all pachylasmatines except Pachylasma giganteum Philippe (open triangles) and Atetrapachylasma dijonesae (arrow), occur in the I-WP at shallow to moderate depths. This suggests that calanticids as well as pachylasmatines once had Tethyan distributions, of which the NE Pacific species appear to be peripheral isolates or relicts, rather than the result of subsequent long-range dispersal.
FIGURE 1. Axial and Vance B in Two Northeast Pacific deep-water barnacle populations (Cirripedia: Calanticidae and Pachylasmatidae) from seamounts of the Juan de Fuca Ridge; " insular " endemics stemming from Tethys, or by subsequent dispersal from the Western Pacific center of distribution?
FIGURE 1. Axial and Vance B Seamounts are located on the Juan de Fuca Ridge, at 45º 55'N–130º 00'W and 45° 30'N–130° 40'W off Oregon (insert, large and small dot) respectively. Hydrothermally active Axial Seamount resides on the ridge crest near the point of origin of the chain of seamounts ranging to the NW. Vance B, among the seamounts running nearly parallel off the ridge crest some 96 km to the SSW, is hydrothermally inactive (see Table 1 for some physical parameters).
FIGURE 4 in An integrative taxonomic approach to the identification of three new New Zealand endemic earthworm species (Acanthodrilidae, Octochaetidae: Oligochaeta)
FIGURE 4. Simplified phylogeny of New Zealand earthworms including the three newly described species M. felix, D. gorgon and O. kenleei (NJ tree based on 16S rDNA). The 16S rDNA sequences obtained for the three newly described species were compared to similar sequences obtained by Buckley et al. (2011). One representative for each major clade of New Zealand endemic earthworms was included in the analysis (see Buckley et al. 2011). The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. The evolutionary distances were computed using the Maximum Composite Likelihood method (Tamura et al. 2004) and are in the units of the number of base substitutions per site. There were a total of 441 positions in the final dataset.
FIGURE 3 in An integrative taxonomic approach to the identification of three new New Zealand endemic earthworm species (Acanthodrilidae, Octochaetidae: Oligochaeta)
FIGURE 3. Octochaetus kenleei Holotype showing dorsal view of prostomium and pygidium, and ventral view of body with spermathecae and prostates in situ; gizzards are in 5 and 6 and calciferous gland is in 17; enlarged 9rhs spermatheca shows nephridia on either side.
FIGURE 1 in An integrative taxonomic approach to the identification of three new New Zealand endemic earthworm species (Acanthodrilidae, Octochaetidae: Oligochaeta)
FIGURE 1. Maoridrilus felix Holotype showing dorsal view of prostomium and pygidium, and ventral view of body with spermathecae and prostates in situ; nephridium of 6lhs is as seen from dorsal dissection; enlarged penial seta 19rhs.
FIGURE 2 in An integrative taxonomic approach to the identification of three new New Zealand endemic earthworm species (Acanthodrilidae, Octochaetidae: Oligochaeta)
FIGURE 2. Deinodrilus gorgon Holotype showing dorsal view of prostomium and ventral view of body with spermathecae and prostates in situ; gizzard is in 6.
FIGURE 4 in A new insular, endemic frog of the genus Kalophrynus Tschudi, 1838 (Anura: Microhylidae) from Tioman Island, Pahang, Peninsular Malaysia
FIGURE 4. Ventral view of A. Kalophrynus tiomanensis left hand; B. Kalophrynus tiomanensis left foot; C. Kalophrynus cf. pleurostigma left foot; D. Kalophrynus palmatissimus left foot
FIGURE 3 in A new insular, endemic frog of the genus Kalophrynus Tschudi, 1838 (Anura: Microhylidae) from Tioman Island, Pahang, Peninsular Malaysia
FIGURE 3. Top row: Type series of Kalophrynus tiomanensis; Bottom row: K. palmatissimus (left three specimens), Kalophrynus cf. pleurostigma (right two specimens)
FIGURE 1 in A new insular, endemic frog of the genus Kalophrynus Tschudi, 1838 (Anura: Microhylidae) from Tioman Island, Pahang, Peninsular Malaysia
FIGURE 1. Known localities of Kalophrynus in Peninsular Malaysia. Yellow: Kalophrynus cf. pleurostigma; Purple: K. yongi; Turquoise: K. robinsoni; Red: Type locality of K. palmatissimus; Blue: K. palmatissimus sympatric with Kalophrynus cf. pleurostigma; Green: K. tiomanensis
FIGURE 2 in A new species of Liolaemus (Squamata, Iguania, Liolaemini) endemic to the Auca Mahuida volcano, northwestern Patagonia, Argentina
FIGURE 2. Holotype of Liolaemus cyaneinotatus MLP.S 2618, adult male in dorsal and ventral view from Auca Mahuida volcano, Pehuenches Department, Neuquén province, Argentina.
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