Four new free-living marine nematode species (Plectida: Ceramonematidae) and two new species records (Desmodorida: Desmodorinae) from Rangitāhua / Kermadec Islands, Aotearoa / New Zealand Author Leduc, Daniel National Institute of Water and Atmospheric Research, Wellington, 14 – 901, New Zealand. Daniel.Leduc@niwa.co.nz text European Journal of Taxonomy 2024 2024-12-03 970 138 174 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2755/12613 journal article 306390 10.5852/ejt.2024.970.2755 52d93426-2c24-4ff6-9765-a02d8d5ac40f 2118-9773 14276273 D69E85B6-D756-4862-AA0B-43C33A442CB8

Table 1. Morphometrics of Ceramonema taikoraha sp. nov. and C. taiora sp. nov. Abbreviations: see Material and methods.

Character	Ceramonema taikoraha sp. nov.			Ceramonema taiora sp. nov.
	males		females	males		females
	holotype	paratypes	paratype	holotype	paratypes	paratypes
n	1	2	1	1	1	4
L	1428	1380, 1401	1408	1047	1040	1070–1141
a	60	55, 58	49	33	33	32–36
b	7	7, 8	7	5	5	5–6
c	7	7	7	5	5	4–5
c’	8.7	8.1, 9.0	8.8	8.7	7.7	8.9–9.5
cephalic capsule width ×length	25 ×37	25 ×33–37	28 ×37	31 ×37	31 × 41	33–34 ×43–45
cephalic ratio	1.5	1.3–1.5	1.3	1.2	1.3	1.3
number of pharyngeal annules	19	19, 21	22	20	18	17–18
number of mid-body annules	117	113, 119	120	72	71	71–77
number of tail annules	34	29, 35	35	35	30	30–32
total number of annules	170	161, 175	177	127	119	119–127
body diam. at cephalic setae	25	23, 25	28	31	30	31–34
body diam. at amphids	25	25	29	31	30	33–35
length of outer labial setae	11	9–11	7–8	10	8	7–9
length of cephalic setae	12–13	8–11	9	10–13	11	9–12
amphidial fovea height	18	18	16	23	26	19–20
amphidial fovea width	8	8, 9	8	11	10	9–10
amphididial fovea width /cbd (%)	32	32, 36	28	35	33	26–29
amphid from anterior end	14	11, 13	15	12	11	17–20
nerve ring from anterior end	125	125, 129	130	150	146	144–153
nerve ring cbd	25	25	26	30	30	32–35
excretory pore from anterior	166	162	ND	169	ND	171–179
pharynx length	205	175, 195	198	206	193	193–209
pharyngeal bulb diam.	11	11, 13	15	14	ND	14–20
pharynx cbd at base	23	24, 25	26	30	30	32–34
max. body diam.	25	24, 25	29	32	32	32–35
spicule length	29	24, 31	–	27	28	–
gubernaculum length	16	12, 15	–	14	13	–
cloacal / anal body diam.	23	23	22	26	26	25–27
tail length	201	186, 206	194	227	200	226–247
V	–	–	646	–	–	471–511
%V	–	–	46	–	–	42–45
vulval body diam.	–	–	29	–	–	31–33