taxonID	type	description	language	source
8622DE56360FF32BE692BFDE1A04F8D8.taxon	etymology	Etymology: The genus name Paracanthonotozomella refers to and derives from the similarity to the genus Acanthonotozomella Schellenberg, 1926. Gender: feminine.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE56360FF32BE692BFDE1A04F8D8.taxon	diagnosis	Diagnosis: Pereonites 1 – 3 dorsally no teeth, carinae starting pereonite 3. Antenna 1: peduncular article 1 longer than 2. Mouthparts projecting conically. Labrum wider than long. Mandibular incisor ordinary, toothed; raker row long; blunt, simple. Lower lip (hypopharynx): inner lobes absent. Maxilla 1: palp 2 - articulate, article 2 ordinary. Maxilla 2: inner plate without facial row of setae. Maxilliped: inner plate shorter and narrower than outer plate; palp article 2 narrow, not produced; palp article 4 well developed. Coxa 2 shorter than coxa 1; coxa 4 long. Gnathopods 1 and 2 alike, articles 5 – 6 elongate, narrow; both gnathopods simple. Telson broad, entire.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE56360FF32BE692BFDE1A04F8D8.taxon	discussion	Remarks. The establishment of a new genus is warranted to the character combination of coxa 2 being shorter than coxa 1, smooth first pereonite and a non produced maxillipedal palp.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F32CE692BAEF1CC6FD82.taxon	description	Updated from Coleman & Jäger 2001	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	description	Figs 4 9, Tab 1	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	materials_examined	Type material. Holotype: male, 11.8 mm, Expedition CoralNewZ, RV SONNE 309, New Zealand, station GeoB 26315 - 8, ROV Dive 103, 20.01.2025, 47 ° 41.246 ’ S, 169 ° 33.684 ’ E, 519 m; NIWA 175262. Paratypes: male, same location as holotype; 11.6 mm; NIWA 175263; female, same location as holotype; 7.6 mm; NHMW-ZOO-CR- 30944.; 1 sex unknown, 7.8 mm, same location as holotype; SMF 63374 (Fig. 9); 1 sex unknown, 7.0 mm, same location as holotype; SMF 63375; photo, on coral NIWA 182231 Expedition CoralNewZ, RV SONNE 309, GeoB 26330 - 13, ROV Dive 105, 24.01.2025, 47 ° 39.099 ’ S, 169 ° 35.592 ’ E, 466 m.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	etymology	Etymology. This species is named in honor of our colleague Stefanie Kaiser, a great peracarid taxonomist and dear friend. Used as a noun in apposition.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	description	Description. Diagnosis as for the genus. Head (Figs 4, 5, 8). Head slightly shorter than pereonite 1, with middorsal keel; rostrum downturned; lateral margins of rostrum and of anterior head margin slightly upturned; eyes more than two times higher than wide. Dorsal ornamentation (Figs 4, 5, 8). Pereonites 1 – 5 with dorsally flattened, wide, stretched oval-shaped projection, narrow dorsal, slightly posteriorly curved carinae starting pereonite 3. Pereonites 3 – 7 dorsal projections, pointing posteriorly, increasing in size. Additional ventro- lateral wing-like processes on pereonites, narrow, slightly pointing posteriorly. Pereonites 5 – 7 mid lateral process pointing posteriorly. Pleonites 1 – 3 with dorsal carinae, those of pleonites 1 – 2 similar in shape and length to that of pereonite 7, longer and stronger than on pereonites 1 – 6. Dorsal process on pleonite 3 shorter, wider. Epimera 1 rounded, Epimera 2 – 3 with pointed posterolateral processes. Urosomite 1 with strong dorsal process, urosomite 2 shortest; urosomite 3 posteriorly excavate, posterodorsally angular. Antenna 1 (Figs 6, 9 d). Peduncular article 1 longest, expanded, distally ending in 2 long, pointed process; article 2 running out into 1 massive long pointed process, exceeding length of third peduncular and first flagellar articles; article 3 shorter than 2; 18 flagellar articles present. Antenna 2 (Fig. 6). Articles 2 of peduncle with two blunt processes,; article 4 about the length of articles 1 – 3 combined, with short process distally; article 5 longest, narrow; flagellum of 23 articles. Labrum (Fig. 6). Uper lip wider than long, apically rounded with shallow notch. Mandible (Figs 6, 9 a). Mandibular body slender, pars molaris absent, setal row consisting of serrate setae, incisor dentate, five teeth, left lacinia mobilis dentate, six teeth, and wide; right lacinia mobilis spine-like; palp article 1 stout; article 2 longest; article 3 slender, slightly curved ventrally, 12 long setae on ventral margin, 3 setae on terminal tip. Lower Lip (Fig 6). Hypopharyngeal process rather wide; lobe mediodistal rounded, few setae on margin. Maxilla 1 (Figs 6, 9 b). Inner lobe narrow, with 4 long setae; outer lobe oblique, with 12 medially serrate setae; palp 2 - articulate, 2 nd article about twice as long as article 1, with 4 stout setae apically. Maxilla 2 (Fig. 6). Outer plate slightly wider than inner, long apical setae apicomedially denticulate. Maxilliped (Figs 6, 9 c). Inner plate narrow, with short apical setae and with row of setae along medial anterior margin; outer plate with few relatively short setae on distal and medial margin; palp 4 - articulate, slender, with few setae, distal margin of article 2 not reaching distal end of outer plate. Gnathopod 1 (Figs. 7, 9 e). Coxa anteriorly pointed, weakly convex posteriorly, strong dorsal ventral ridge, margins to half of length ventrally serrated, short setae on posterior margin; basis curved anteriorly; ischium shortest; merus oblique, expanded distally; carpus subrectangular, with long setae posteromarginally; propodus 70 % length of carpus, with long setation on posterior margin, posterodistal margin serrate, palm lacking; dactylus with 2 pointed processes on posterior margin. Gnathopod 2 (Fig. 7). Coxa ventrally truncate, weakly convex posteriorly, apex subacutely pointed, with ridge on lateral face, serrated ventral margin, short spines on posteroventral margin, coxa 2 10 % shorter than coxa 1; basis elongate, straight; ischium shortest; merus oblique, expanded distally, long setae on posterodistal margin; carpus subrectangular, with long setae posteromarginally; propodus 70 % length of carpus, with setation on posterior margin, posterodistal margin serrate, palm lacking; dactylus with 2 pointed processes on posterior margin. Pereopod 3 (Fig. 7). Coxa 15 % longer than coxa 2, pointed apex, strong ridge on lateral face, serrated margins, setae on ventral margin; basis shorter than coxa; ischium shortest, with anteroproximal notch; merus expanded distally, drawn out into process anteriorly; slightly excavate posteriorly; carpus shorter than merus, setae on posterodistal margin; propodus as long as merus, 4 pairs of setae on posterior margin; dactylus 1 thick spine next to pointed tip. Pereopod 4 (Fig. 7). Coxa about as wide as coxa 3 and 2 combined, anterior margin convex, ventral process pointed tip directed posteriorly, posterior margin extra pointed extension pointing posteriorly, ridge on lateral face; basis shorter than coxa, subrectangular; ischium shortest; merus weakly expanded distally, anterodistal angle acutely drawn out; carpus slightly shorter than merus, expanded distally, with short, stout setae posteromarginally; propodus with similar posteromarginal setation as carpus; dactylus 1 fine spine / setae next to tip. Pereopod 5 (Fig. 7). Coxa wider than long, winglike pointed extension, convexly rounded anteriorly and posteriorly; basis with setae on anterior and posterior margin, ventral margin extended, tip pointing ventrally; ischium shortest, setae on anterior margin; merus expanded distally, drawn out into long process posterodistally, setae on anterior and posterior margins; carpus same length as merus, setae on anterior margins; dactylus half the length of propodus. Pereopod 6 (Fig. 7). Coxa wider than long, similar winglike extension as coxa 5, but total size of coxa smaller than coxa 5, posteriorly lobate, anteriorly angled; basis to merus of similar shape to pereiopod 5; carpus to dactylus missing. Pereopod 7 (Figs 5, 7). Coxa subquadrate; basis wide, anteromarginally convex, with long setae proximally, posterior margin sinuous, posteroventral angle subacute, exceeding ischium; ischium and merus as for pereopod 5. Uropod 1 (Fig. 8). Peduncle longer than rami, setation only on lateral margin; outer ramus slightly shorter than inner. Uropod 2 (Fig. 8). Peduncle same length as outer ramus, setation only on lateral margin; outer ramus 80 % length of inner ramus. Uropod 3 (Fig. 8). Peduncle shortest, outer ramus 95 % length of inner ramus, margins of rami with setae. Telson (Fig. 8). Telson longer than wide, uncleft, apically rounded, two incisions / small setae. Colour pattern (Figs 2, 3). The eye colour of live animals is orange with a white rim. The body colour is light orange and translucent.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	materials_examined	Molecular identification. The species has received a Barcode Index Number from Barcode of Life Data Systems: BOLD: CZAMP 001 - 25 and CZAMP 002 - 25, Bin BOLD: AGU 4888.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
8622DE563608F321E692B8051B7CF8F5.taxon	biology_ecology	Ecology and Distribution. All specimens of Paracanthonotozomella steffi sp. nov. were found on the primnoid corals Metafannyella aff. eos and Thouarella sp.; South West Pacific Ocean, Rakiura Hills off Stewart Island, New Zealand, 519 m depth.	en	Lörz, Anne-Nina, Peart, Rachael A., Freiwald, André (2025): Cold-water coral associated Acanthonotozomellidae (Crustacea, Amphipoda) off Aotearoa New Zealand, with description of a new genus and species. Zootaxa 5729 (4): 535-548, DOI: 10.11646/zootaxa.5729.4.3, URL: https://doi.org/10.11646/zootaxa.5729.4.3
