A new freshwater goby of Rhinogobius (Teleostei: Gobiidae) from the Chongkang River basin, western Taiwan Author Chen, I-Shiung 0000-0002-4190-7720 Institute of Marine Biology, National Taiwan Ocean University, Keelung, 202301, Taiwan, R. O. C. & Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, 202301, Taiwan, R. O. C. iscfish@gmail.com text Zootaxa 2025 2025-12-30 5738 1 197 204 https://doi.org/10.11646/zootaxa.5738.1.24 journal article 314557 10.11646/zootaxa.5738.1.24 513d35f1-d6d5-4f49-a83d-7dc3df32d7fc 1175-5326 19138505 CA64C462-5C0C-4D27-B375-5D522FB46B8D

TABLE 1. Morphometry of Rhinogobius chongkangensis.

Type	Holotype	Paratype	Paratype	Paratype	Paratype	Paratype
No. of samples
Sex	Male	Male	Male	Female	Female	Female
standard length (mm)	36.8	36.0	34.2	31.9	35.7	39.0
% in SL
Head length	32.2	31.1	32.1	29.4	30.8	31.0
Predorsal length	41.8	39.3	40.7	38.2	39.0	41.2
Snout to 2nd dorsal fin origin	61.8	59.4	58.4	58.1	59.7	61.1
Snout to anal fin origin	68.0	6.36	63.6	65.5	63.9	67.9
Snout to anus	62.7	58.2	59.9	60.1	59.0	62.5
Prepelvic length	34.2	28.9	29.9	30.2	31.1	31.7
Caudel peduncle length	18.4	19.6	25.3	22.5	20.9	18.3
Caudal peduncle depth	12.2	13.1	14.3	12.5	13.4	12.4
First dorsal fin base	18.4	17.4	20.1	19.5	17.6	18.1
Second dorsal fin base	22.6	25.9	23.4	22.5	24.0	25.5
Anal fin base	17.7	19.2	19.1	16.9	19.1	31.4
Caudal fin length	25.0	27.0	27.5	19.3	26.8	25.1
Pectoral fin length	24.5	24.4	25.8	24.3	25.6	25.0
Pelvic fin length	19.7	18.9	19.1	17.5	19.3	18.0
Body depth of pelvic fin origin	17.5	16.6	18.7	16.2	17.8	18.4
Body depth of anal fin origin	15.5	16.4	17.4	16.2	16.7	17.4
Body width of anal fin origin	11.9	12.5	13.7	11.4	14.4	13.8
Pelvic fin origin to anus	32.5	27.7	29.9	32.2	28.5	32.3
% in HL
Snout length	28.7	30.2	33.3	31.1	28.3	29.9
Eye diameter	21.5	23.9	23.5	21.9	23.0	22.3
Postorbital length	54.0	58.2	52.7	59.3	52.4	53.6
Cheek depth	32.7	31.1	33.6	30.0	29.1	29.4
Head width in upper gill-opening	51.7	53.2	53.8	50.4	49.5	54.6
Head width in maximum	64.9	64.0	63.9	66.9	62.4	66.6
Fleshy interorbital width	28.2	27.9	28.5	29.7	24.5	25.8
Bony interorbital width	13.8	12.6	10.9	13.3	10.0	9.3
Lower jaw length	36.8	40.8	38.5	38.8	34.5	36.2
% in Caudel peduncle length
Caudal peduncle depth	65.9	67.0	56.5	55.7	64.2	67.8