Table 3 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)

Table 3 Measurements of neurocrania in percentages of nasobasal length (%NL) for specimens of Schroederichthys maculatus and S. saurisqualus. F, number of examined females; M, number of examined males.
MeasurementsS. maculatusS. saurisqualusM =1M =F =11Nasobasal length (NL)26.450.946.7Rostral length25.031.825.5Width across lateral rostral cartilages18.213.015.6Width across nasal capsules80.268.773.2Nasal capsule width44.737.739.6Nasal capsule length47.336.938.7Distance between nasal apertures15.527.728.3Nasal aperture width25.420.424.8Distance between rostral base and posterior edge40.938.139.2of anterior fontanelleAnterior fontanelle width20.112.217.3Width across orbital notches42.731.034.0Orbit length39.445.444.7Preorbital process length8.87.36.0Postorbital process length9.38.08.1Width across suborbital shelves55.047.951.8Otic capsules length32.224.724.2Width across otic capsules55.947.751.6Width across preorbital processes67.754.454.0Width across postorbital processes70.365.264.7

表3 斑唇须鲨（Schroederichthys maculatus）与锯鳞须鲨（S. saurisqualus）标本的神经颅测量值（以鼻基长百分比计，%NL）。其中F为检测雌性个体数量，M为检测雄性个体数量。
测量指标 斑唇须鲨 锯鳞须鲨 样本组
鼻基长（nasobasal length, NL） 26.4 50.9 46.7
吻长（rostral length） 25.0 31.8 25.5
侧吻软骨间距（width across lateral rostral cartilages） 18.2 13.0 15.6
鼻囊间距（width across nasal capsules） 80.2 68.7 73.2
鼻囊宽（nasal capsule width） 44.7 37.7 39.6
鼻囊长（nasal capsule length） 47.3 36.9 38.7
鼻孔间距（distance between nasal apertures） 15.5 27.7 28.3
鼻孔宽（nasal aperture width） 25.4 20.4 24.8
吻基与前囟后缘间距（distance between rostral base and posterior edge of anterior fontanelle） 40.9 38.1 39.2
前囟宽（anterior fontanelle width） 20.1 12.2 17.3
眶切迹间距（width across orbital notches） 42.7 31.0 34.0
眶长（orbit length） 39.4 45.4 44.7
眶前突长（preorbital process length） 8.8 7.3 6.0
眶后突长（postorbital process length） 9.3 8.0 8.1
眶下脊间距（width across suborbital shelves） 55.0 47.9 51.8
听囊长（otic capsules length） 32.2 24.7 24.2
听囊间距（width across otic capsules） 55.9 47.7 51.6
眶前突间距（width across preorbital processes） 67.7 54.4 54.0
眶后突间距（width across postorbital processes） 70.3 65.2 64.7