Morphological and taxonomic diversity of the bryozoan genus Chaperia (Cheilostomata: Chaperiidae) in the Aotearoa New Zealand EEZ and on the southern Norfolk Ridge Author Gordon, Dennis P. text Zootaxa 2025 2025-12-23 5737 2 151 202 https://doi.org/10.11646/zootaxa.5737.2.1 journal article 314675 10.11646/zootaxa.5737.2.1 2c314dd7-d4d3-4a4f-934c-be8562b6ed08 1175-5326 19136951 E0E26133-3B5A-4187-AFB6-5AFF18397BD8

TABLE 5. Comparison of some major characters of described extant non-New Zealand species of Chaperia. Some metrics are not given in the original descriptions (e.g. Lamouroux, 1825), whereas some other metrics (e.g. OpL:ZL ratio, % of opesia bordered by spines) were able to be determined from the original illustrations 1 if the information was not originally provided in the text.

Species	Zooid length (µm, mean)	Opesia length (µm, mean)	Opesia width (µm, mean)	OpL:ZL ratio (mean)	Total no. of opesial spines	Principal number of spines	% of opesial length bordered by spines (spine bases)	Mean % of opesial length bordered by spines	Other features
1 Based on original description and drawings (drawing accuracy contingent upon author’s use of a camera lucida, patented 1806). 2 Based on unpublished SEM images supplied to D.P. Gordon. 3 Based on published data and/or images.
acanthina (Lamouroux, 1825) 1	?	?	?	0.34	8-10	9	43-91	78	on shell
albispina (MacGillivray, 1882) 2	624	197	197	0.32	7-10	9	80-116	98	spines to 73 µm diameter
atypica Boonzaaier-Davids et al., 20233	510	170	190	0.33	6-8	7	70-116	86	avicularia
brasiliensis Vieira et al., 20203	424	236	265	0.56	7-11	9	19-24	22	eroded
capensis (Busk, 1884) 3	684	332	395	0.58	0-2	2	0-15	9	encrusting on erect branches
ciliata (MacGillivray, 1869) 1	?	?	?	0.31	5-9	?	82-99	90	on algae
infundibulata d’Hondt, 19882	300	300	200	0.67	10-11	?	12-23	17	infundibuliform spines
Judex (Kirkpatrick, 1888) 3	545	185	213	0.39	14-17	15	122-100	112	~14 spines in ancestrula
polygonia Kluge, 19142	574	319	321	0.56	4-8	6	12-48	23	nodular ooecium
septispina Florence et al., 20073	427	256	319	0.74	5-7	6	31-68	50	broad opesia
setigera (Hincks, 1881) 1	?	?	?	0.35	6-8	7	59-61	60	elongate cryptocyst
taylori Ramalho & Calliari, 20153	567	317	277	0.49	5-6	6	23-14	19	—