Hatschekia cyanopodus, Lee & Lee & Boxshall, 2013
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publication ID |
https://doi.org/ 10.5252/z2013n3a3 |
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persistent identifier |
https://treatment.plazi.org/id/51692336-BA42-FFCE-E1B8-68584619A64B |
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treatment provided by |
Felipe |
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scientific name |
Hatschekia cyanopodus |
| status |
sp. nov. |
Hatschekia cyanopodus n. sp.
Hatschekia sp. 11 – Justine et al. 2010a: fig. 1C.
TYPE HOST. — Epinephelus cyanopodus (Richardson, 1846) (Speckled blue grouper) ( Perciformes : Serranidae ).
TYPE LOCALITY. — Off Ouen Toro, Nouméa, New Caledonia (22°18’47’’S, 166°26’55’’E).
ETYMOLOGY. — The specific name of the new species, cyanopodus , is treated as a noun in apposition and is named after its host.
MATERIAL EXAMINED. — Holotype female (MNHN- IU-2013-4004) dissected on 14 slides. Paratype female ( NHMUK 2012.285) dissected on 6 slides. 12 ♀♀ undissected paratypes (2 ♀♀ for SEM): from E. cyanopodus [JNC 1530C], off Ouen Toro, Nouméa, New Caledonia (22°18’47’’S, 166°26’55’’E), coll. J.-L. Justine, 10. V.2005. 5 ♀♀ undissected in MNHN-IU-2013-4005, 2 ♀♀ undissected in MABIK CR00179909-CR00179910.
ADDITIONAL MATERIAL. — 40 ♀♀ from E. cyanopodus [JNC1625], Passe de Dumbéa , New Caledonia, coll. J.- L. Justine, 25.X.2005. (MNHN-IU-2013-4006) ;
14 ♀♀ from E. cyanopodus [JNC1626], Passe de Dumbéa , New Caledonia, coll. J.-L. Justine, 25.X.2005. (MNHN- IU-2013-4007) ;
6 ♀♀ from E. cyanopodus [JNC1661], Passe de Dumbéa , New Caledonia, coll. J.-L. Justine, 25.XI.2005. ( NHMUK 2012.291 About NHMUK - 296 About NHMUK ) ;
10 ♀♀ from E. cyanopodus [JNC1659], Passe de Dumbéa , New Caledonia, coll. J.-L. Justine, 25.XI.2005. ( NHMUK 2012.1271 About NHMUK - 1280 About NHMUK ) ;
6 ♀♀ from E. cyanopodus [JNC1718], Passe de Dumbéa , New Caledonia, coll. J.-L. Justine, 16.I.2006. ( NHMUK 2012.1281 About NHMUK - 1286 About NHMUK ) ;
1 ♀ from E. cyanopodus [JNC1888]; Récif Aboré, New Caledonia, Coll. J.-L. Justine, 2.VII.2006. ( NHMUK 2012.1287 About NHMUK ) ;
29 ♀♀ from E. cyanopodus [JNC1901]; Récif Snark, New Caledonia, Coll. J.-L. Justine, 8.VII.2006. ( MABIK CR00179911 - CR00179939 ) ;
15 ♀♀ from E. cyanopodus [JNC1902]; Récif Snark, New Caledonia, Coll. J.-L. Justine, 8.VII.2006. ( NHMUK 2012.1288 About NHMUK - 1297 About NHMUK ) ;
DNA-barcode (mtCOI) sequences and traces were submitted to GenBank (accession number: JQ 664006 View Materials ).
DESCRIPTION
Female
Total body length 1040-1330 Μm (n = 12, mean = 1150 Μm) excluding caudal rami. Body ( Fig. 4A View FIG ) dorsoventrally flattened; with integument separated from internal body tissues by space; body surface ornamented with tiny pores.Cephalothorax ( Fig. 4A View FIG ) hexagonal, slightly longer than wide (396 × 371 Μm), dorsal surface with distinct subsurface chitinous markings in form of “m-shape”, bar in mid-line slender, lacking side branches, extending well beyond branched posterior tips of curved lateral bars; posterior margin of cephalothorax with rounded extension in posterior midline. Trunk ( Fig. 4A View FIG ) longer than wide (783 × 458 Μm), with rounded lateral margins and greatest width just anterior to level of insertion of fourth legs; posterior margin with widely spaced pair of small processes ( Fig. 5E View FIG [pp]), each tapering distally and with wrinkled surface cuticle, pair of smooth flap-like processes (fp) located medial and ventral to posterior processes. Surface of trunk finely tuberculate ( Figs 3C, D View FIG ; 5E View FIG ). Urosome ( Fig. 5E View FIG ) excluding caudal ramus shorter than wide (72 × 89 Μm), unsegmented and fused to trunk, comprising genital complex and abdomen fused; pair of tuberculate processes (arrowed in Figs 3D View FIG ; 5E View FIG [tp]) present in immediate area of genital apertures, with ornamentation of long setules between, but detail obscured by adhering debris ( Figs 3C, D View FIG ; 5E View FIG ). Caudal ramus ( Fig. 5E View FIG ) elongate, longer than wide (68 × 23 Μm),indistinctly subdivided by transverse markings, with five naked setae, innermost two each with swollen base and slender tip, and one plumose lateral seta. Egg sacs with mean of 14.7 eggs per sac, range from 13 to 17 eggs per sac.
Rostrum absent. Antennule ( Fig. 4B View FIG ) 5-segmented; length 204 Μm; armature formula: 5, 3, 4, 1, 13 + ae; first segment with integument separated from internal tissues. Antenna ( Fig. 4C View FIG ) 3-segmented; proximal segment unarmed (not figured); middle segment (basis) swollen and tapering distally, ornamented with surface pits; terminal claw subdivided by incomplete suture; without armature; total length 212 Μm; middle segment length 149 Μm; terminal claw length 63 Μm. Parabasal papilla ( Fig. 3B View FIG ) blunt, thumblike knob, with wrinkled surface. Oral cone robust. Mandible ( Fig. 4D View FIG ) slender, tapering distally, with five small teeth. Maxillule ( Fig. 4E View FIG ) bilobate, both lobes armed with two sharp tapering processes. Maxilla ( Fig. 4F View FIG ) 4-segmented; proximal segment unarmed; second segment swollen, with one basal seta; third segment rod-like, elongate, with one distal seta; terminal segment small with one small seta and bifid claw. Maxilliped absent.
Leg 1 ( Fig. 5A View FIG ) biramous; protopod fused with trunk, bearing one inner and one outer seta; exopod indistinctly 2-segmented, exp-1 with one outer seta, exp-2 with one outer and two distal setae; endopod 1-segmented, with one distal seta; protopod length 23 Μm; exopod length 36 Μm; endopod length 23 Μm. Leg 2 ( Fig. 5B View FIG ) biramous; protopod fused with trunk and bearing one plumose outer seta; exopod indistinctly 2-segmented, exp-1 with one outer seta ornamented with fine hairs, exp-2 with one inner and three distal setae; endopod 1-segmented, with two distal setae; protopod length 19 Μm; exopod length 49 Μm; endopod length 21 Μm. Protopod and rami of legs 1 and 2 ( Fig. 5A, B View FIG ) ornamented with crescentic rows of blunt spinules on surface. Intercoxal sclerites of both legs incorporated into body. Leg 3 ( Fig. 5C View FIG ) represented by two plumose setae on lobe located laterally in middle of trunk. Leg 4 ( Fig. 5D View FIG ) represented by one small plumose seta arising from subsurface papilla, located laterally at three quarters of trunk length.
Male
Unknown.
REMARKS
Hatschekia cyanopodus n. sp. is very closely related to H. maculatus n. sp. Both species have a similar shaped cephalothorax which extends posteriorly in the dorsal midline, have a clear intervening space between the integument covering the body surface and the underlying internal tissues, and possess posterior lobes on the trunk. However, the lobes are smaller and more widely spaced on the rear margin of the trunk in H. cyanopodus n. sp. than in H. maculatus n. sp. In addition, H. cyanopodus n. sp. possesses paired flap-like lobes just medial and ventral to the posterior processes, plus the paired tuberculate processes ( Figs 3D View FIG ; 5E View FIG ) located near the genital apertures. This combination of processes is unique within the genus. The pattern of subsurface chitinous markings on the cephalothorax is similar in H. maculatus n. sp. and H. cyanopodus n. sp., but the latter lacks the side branches located proximally on the bar in the mid-line present in the former.
In both species the body shape is also similar to that of H. cernae , with little perceptible difference in width between the cephalothorax and trunk. Hatschekia cyanopodus n. sp. has the same setal formula for leg 2 as H. maculatus n. sp. but they differ in the setation of leg 1 which has an additional setal element on the distal exopodal segment in H. cyanopodus n. sp. Leg 4 is represented by 2 setae in H. maculatus n. sp. but only a single seta in H. cyanopodus n. sp. The number of mandibular teeth also differs between these two species. The parabasal papilla is tapering in H. maculatus n. sp. but blunt in H. cyanopodus n. sp.
The ventral surface of the trunk in the vicinity of the genital apertures has very unusual ornamenta- tion in H. cyanopodus n. sp. The whole surface of the trunk is finely tuberculate ( Figs 3C, D View FIG ; 5E View FIG ) but in the immediate area of the genital apertures there are long setules present, to which debris adheres obscuring precise details. We did not observe such setular ornamentation in any other species and are uncertain both of its origin and its functional significance. The egg sacs of H. cyanopodus n. sp. contain a mean of 14.7 eggs per sac, whereas those of H.maculatus n. sp. contain a mean of only 4.0 eggs per sac.
| NHMUK |
Natural History Museum, London |
| V |
Royal British Columbia Museum - Herbarium |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.