| The male palpi are large for the size of the spider, and the palpal organ extends back beyond the tibia. |
| The palpal organs and male palpi are of great variety and distinguish the males of all species without much difficulty. |
| The number of maxillary palpal joints usually is five but varies between two and six. |
| The tibia of the palpal organ has a short, pointed process, extending directly outward from the side. |
| In x-notata the palpus is as long as the cephalothorax, and the tarsus and palpal organ small and round. |
| In montana the palpus is still shorter, the tibia thicker, and the tarsus and palpal organ larger. |
