Advertisement For Ceratogyrus darlingi and Ceratogyrus marshalli, I heard that males do not develop as much horns as females do. Without looking at the exuvium or the ventral view of a C. darlingi, can I say the T is a female based on the presence of a developed horn? The tarantula in question is already around 3.5 -4 inches DLS. I will try to get a picture later. Can anyone give inputs please.