394 
Fishery Bulletin 1 1 1 (4) 
Figure 2 
Micrographs of transverse sections of ovaries, oocytes inside the gelatinous matrix, and testes of Black 
Anglerfish ( Lophius budegassa) collected in the northwestern Mediterranean Sea between June 2007 
and December 2010. The final 4 stages of ovary development are shown in the left column: (A) Phase II: 
developing or regenerating; (B) Phase III: spawning capable; (C) Phase IV: actively spawning; (D) Phase 
V: regressing. Oocytes are featured in the middle column: (E) 1 oocyte in a chamber (486 pm in diam- 
eter), (F) 2 oocytes floating in a chamber (427 pm and 359 pm in diameter), (G) 3 oocytes in a chamber 
(341 pm, 330 pm, and 322 pm in diameter), and (H) closed-up division between chambers. In the right 
column, transverse sections of testes show (I) its lobular organization, (J) empty lobules, (K) seminal 
lobule during spermatogenesis, and (L) spermatozoa in the lumen of the seminal lobule. Ov=ovigerous 
membrane; n=nucleus; Od=oil droplet; Yv=yolk vesicle; m=mucus matrix; Cn=chromatin nucleolar; 
Pn=perinucleolar; Pof=postovulatory follicle; l=seminal lobule; Sg=spermatogonia; Sc=spermatocyte; 
St=spermatid; Sz=spermatozoa. Scale bars=100 pm. 
