| Hibbard's listing was obviously a lapsus calami for Chelydra since he placed the genus in the family Chelydridae. |
| T for F is not a very likely lapsus calami, despite the touch-typing affinity of T and F, but it's a very common OCR error. |
| The artist is a sort of impassioned proof-reader, blue-pencilling the lapsus calami of God. |
| Amazing that a lapsus calami would synthesize so well a question of attitude. |
| We extracted and amplified DNA from contour feather calami according to the techniques of Jensen et al. |
| A complex pattern of feather muscles connects the calami of neighboring feathers. |
