A taxonomic revision of Northeast Pacific softnose skates (Rajiformes: Arhynchobatidae: Bathyraja Ishiyama) Author Knuckey, James D. S. Author Ebert, David A. 0000-0002-8836-5172 knuckey.james@gmail.com text Zootaxa 2022 2022-06-01 5142 1 1 89 http://zoobank.org/ab36996c-74d9-416a-94c2-106345faff75 journal article 112024 10.11646/zootaxa.5142.1.1 0df08dc0-d0ea-40e8-91db-cab4c5c8ebc9 1175-5326 6601274 AB36996C-74D9-416A-94C2-106345FAFF75

TABLE 8. Meristics for the seven Bathyraja species in this study.

Measurements	B. abyssicola	B. aleutica	B. interrupta	B. kincaidii	B. microtrachys	B. spinosissima	B. trachura
Interdorsal thorn count	0–1	1–2	0–1	0–2	0–1	0–1	0–1
Middorsal thorn count	0–2	4–11	1–8	0–9	0	0	0–2
Nuchal thorn count	2–4	3–5	2–5	3–7	0	0	0–3
Orbital thorn count- right side	0	0	0	0	0	0	0
Orbital thorn count- left side	0	0	0	0	0	0	0
Rostral thorn count	0	0	0	0	0	0	0
Scapular thorn count- right side	0–2	1–2	0–2	0–2	0	0	0
Scapular thorn count- left side	0–2	1–2	0–2	0–2	0	0	0
Tail thorn count	15–30	18–30	18–26	14–22	19–26	22–28	21–30
Alar thorn count- rows- right side (males only)	3–6	7	4–6	2–4	3–5	0	4–6
Alar thorn count- rows- left side (males only)	3–5	8	4–6	2–4	3–5	0	4–5
Alar thorn count- columns- right side (males only)	20–22	21	18–22	8–20	19–24	0	20–23
Alar thorn count- columns- left side (males only)	21–23	24	18–22	14–22	19–24	0	20–23
Malar thorn count- rows- right side (males only)	0	0	0	0	0	0	0
Malar thorn count- rows- left side (males only)	0	0	0	0	0	0	0
Malar thorn count- columns- right side (males only)	0	0	0	0	0	0	0
Malar thorn count- columns- left side (males only)	0	0	0	0	0	0	0
Upper teeth- total count	27–39	34–42	22–32	22–31	23–30	31–33	27–36
Lower teeth- total count	26–34	32–38	23–32	18–31	11–22	24–31	26–36
Spiral valve count	8–9	8–9	n.a.	5–9	6–9	n.a.	7–10
Pectoral fin radial count	82	90	n.a.	69–72	61–74	n.a.	81
Pelvic fin radial count	19	22	n.a.	17–19	14	n.a.	23
Vertebral count	139	152	133	132	130	137	109