| It measures 40-50 cm in length, weighs up to 2kg and has a thick, woolly coat that is dark brown or blackish. |
| Light morphs have brown upperparts with a blackish cap and white collar, white underparts, and yellowish sides of the neck. |
| The birds become lethargic, with a staggered gait, their feathers are ruffled, and the comb and wattles turn dark red or blackish. |
| About six days after suffering the infected flea bite, the victim develops a blackish pustule at the point of the bite. |
| The outermost surface of the megamouth's body is blackish brown, while its belly is noticeably white. |
| Lamouroux described the fructification as capsules joined to form rather large blackish spots scattered over both surfaces of the frond. |
