Measurements of eight morphometric characters of Atrina inflata (n = 45), A. pectinata (n = 231), and A. vexillum (n = 17). Values are expressed as the mean ± standard deviation. TSL = total shell length (A), LAPAM = length of anterior to posterior adductor margin (B), PAPSM = posterior adductor to posterior shell margin (C), DPSM = dorsal posterior shell margin (D), DM = dorsal margin (E), ShW = shell width (F), PAMPNM = posterior adductor margin to posterior nacreous margin (G), DNL = dorsal nacreous length (H). Small letters above the columns indicate the results of post-hoc tests.

 
 
  Part of: Jela C, Monteclaro HM, Añasco NC, Quinitio GF, Babaran RP (2024) Identification of pen shells (Bivalvia: Ostreida: Pinnidae) collected off northern Iloilo, Philippines using their morphological characters. Acta Ichthyologica et Piscatoria 54: 49-61. https://doi.org/10.3897/aiep.54.112465