The genera Isorineloricaria and Aphanotorulus (Siluriformes: Loricariidae) with description of a new species Author Ray, C. Keith Author Armbruster, Jonathan W. text Zootaxa 2016 4072 5 501 539 journal article 46839 10.11646/zootaxa.4072.5.1 235dd6cd-8f4e-4d97-abe9-49048dee198a 1175-5326 263020 9C5743A5-6F97-471E-8F60-99A744193FE1

TABLE 6. Selected morphometrics of Isorineloricaria tenuicauda and I. villarsi.

Isorineloricaria tenuicauda		Isorineloricaria villarsi
Measurement N Average SD	Range	N Average SD	Range
Standard Length (SL, mm) 12	41.5–516.9	16	85.5–516.9
% SL
Predorsal Length 12 37.8 1.9	34.5–40.8	16 35.7 3.2	29.2–41.8
Head Length (HL) 12 32.4 2.4	28.6–37.8	16 29.4 3.2	24.0–36.1
Cleithral Width 12 25.4 1.3	22.6–28.0	16 22.9 2.4	19.1–26.7
Dorsal spine Length 10 32.1 2.2	28.3–35.0	15 27.8 5.6	13.8–34.1
Folded dorsal-fin Length 12 40.3 1.5	37.2–42.3	16 37.1 2.4	31.2–40.1
Dorsal-fin base Length 12 25.9 1.8	21.0–28.7	16 23.8 1.7	19.7–26.4
Dorsal- adipose Length 12 20.5 1.5	17.6–22.7	16 22.0 1.5	18.3–24.2
Thorax Length 12 24.3 1.3	22.1–26.1	16 22.9 1.6	19.1–25.8
Pectoral spine Length 12 30.8 2.6	24.4–34.0	16 26.2 2.0	23.4–30.7
Abdominal Length 12 20.4 0.8	19.4–21.8	16 20.2 1.3	18.0–22.7
Pelvic spine Length 12 22.0 1.9	17.7–25.2	16 20.2 1.7	16.4–23.4
Postanal Length 12 37.0 2.0	31.2–38.7	16 40.1 3.3	34.1–45.8
Caudal peduncle Depth 12 8.2 0.7	6.8–9.2	16 7.4 1.0	6.3–9.1
Caudal peduncle Width 12 14.2 1.6	9.4–15.7	16 14.8 1.8	12.5–18.3
Adipose-fin spine Length 12 8.2 0.7	7.7–9.8	16 7.5 0.6	6.6–9.0
Anal-fin Length 12 16.0 1.2	14.0–18.0	16 14.6 1.8	10.6–16.9
Anal-fin base Length 11 4.4 0.6	3.2–5.5	16 4.5 0.5	3.6–5.3
Adipose- upper caudal Length 12 23.1 1.1	21.3–25.1	16 21.1 1.8	16.9–23.3
Adipose- lower caudal Length 12 26.6 1.2	24.7–28.5	16 25.0 1.5	21.1–26.6
%HL
Head Depth 12 58.4 2.3	54.4–62.8	16 55.7 2.8	50.6–62.0
Snout Length 12 56.6 1.7	52.7–59.0	16 57.1 2.5	53.1–62.6
Orbit Diameter 12 15.8 2.3	12.7–19.1	16 13.7 3.3	10.2–22.7
Interorbital Width 12 43.1 1.7	40.2–45.8	16 42.6 1.8	38.9–45.8
Snout opercle Distance 12 71.4 2.2	68.1–75.8	16 72.4 2.5	66.6–74.7
Head Width 12 81.4 4.1	71.5–86.9	16 79.4 2.5	74.6–85.6
Head eye Length 12 42.4 1.6	39.6–44.5	16 43.1 1.8	38.0–45.1
Eye nare Length 12 13.1 1.4	9.9–14.5	16 12.8 1.4	10.7–16.1
Internares Width 12 15.2 1.3	12.8–16.7	16 17.0 1.4	14.8–19.3
Snout nares Length 12 35.9 2.1	30.9–39.0	15 37.2 2.2	33.0–42.8
Snout pectoral Length 12 72.9 1.9	70.9–77.4	16 75.0 2.7	67.1–78.5
Pectoral orbit Distance 12 27.0 2.2	21.4–29.1	16 28.6 2.0	24.5–31.0
Mouth Width 12 38.3 2.6	34.9–42.4	16 38.5 2.6	32.6–42.8
Mouth Length 12 43.1 2.7	39.0–47.2	16 42.3 2.5	38.6–46.8
Dentary Length 12 12.2 1.3	10.1–14.1	16 11.9 1.1	10.4–14.5