Histological sections of gonads of Chlorurus microrhinos from Fiji. (A) ovary of immature female (36.3 cm LF) containing primary-growth (I) and cortical vesicle (II) oocytes, plus a conspicuous lumen (L); (B) ovary of mature female (37.1 cm LF) containing a mixture of oocyte stages including final maturation (IV); (C) testis from an immature male (38.0 cm LF) containing no tailed spermatozoa, but with a conspicuous lumen (L); (D) testis of a mature male (38.7 cm LF) with tailed spermatozoa (S); scale bars = 100 μm (A and B) or 50 μm (C and D).

  Part of: Longenecker K, Franklin EC, Hill-Lewenilovo R, Lalavanua W, Langston R, Mangubhai S, Piovano S (2022) Many immature individuals and largest size classes lacked females for three coral reef fishes (Actinopterygii) in Fiji market surveys: Implications for fishery management. Acta Ichthyologica et Piscatoria 52(1): 53-65. https://doi.org/10.3897/aiep.52.80586