dactylous

The larger ossicles are striated on the surface, the striae being produced along the anterior margin so as to give it a dactylous appearance; the median striation is longest, and extends to the point of the rhomboidally-shaped scale.

1887, James W. Davis, “The Fossil Fishes of the Chalk of Mount Lebanon, In Syria”, in The Scientific Transactions of the Royal Dublin Society, page 476

The unfortunate fact that there are no dactylous pedicellariae to be found in the specimen under consideration prevents reaching a definite conclusion. The dactylous pedicellariae of A. owstoni and A. coriaceum are very different— 3-valved and of a very primitive type in the former, 5-valved and of a highly finished type in the latter.

1963, Theodor Mortensen, “Report on the Echinoidea Collected by the United States Fisheries Steamer "Albatross" During the Pilippine Expedition, 1907-1910.”, in Papers on Echinoidea, Fishes, and Copepoda, page 21

The dactylous type reaches its extreme development in species of Araeosoma, where it consists of four or five jaws drawn out into a long narrow shape, topped by a terminal disciform expansion.

2005, D.R. Khanna, Biology of Echinodermata, page 79

Although the Famennian tetrapods have dactylous limbs and more heavily constructed vertebral columns than lobe-finned fishes, they still appear to have been largely aquatic.

2000, Henry Gee, Shaking the Tree: Readings from Nature in the History of Life, page 277

We presume that they made at least brief ventures onto land because of their dactylous limbs and modified limb girdles.

2001, Karel F. Liem, Warren Franklin Walker, Functional Anatomy of the Vertebrates, page 79