D URING the winter of 1931-32 Mr. Allison V. Armour's exploring yacht Utowana revisited the West Indian area and touched at several islands which were not visited during the 1929-30 cruise when I had the great good fortune to be aboard. A short stop was made iat the Island of Cannouan and there Doctor David Fairchild and his associate Mr. H. F. Loomis took a specimen of Scolecosaurus. I have long been interested in this genus and I believe this specimen represents an hitherto unknown form, so slightly modified from the animal of Grenada that, quite inconsistently, I call it but a new subspecies although an overlapping of characters may not exist. Cannouan is dry and arid; Grenada is heavily wooded and very rainy. Recently Mr. and Mrs. Burt (Bull. Amer. Mus. Nat. Hist., 61, 1931; 374) have reviewed the genus but they did not get at all the facts in the case by any means. The history of the name of the genotype follows: Cuvier in the Regne Animal (1817, Vol. II: 57) discusses the genus Chalcides Daudin but he had no four fingered species among those he recited. Fitzinger, however, (Neue Class. Rept., 1826: 50) lists in his IX Familia, Chalcidoidea, the (3) genus Brachypus and species cuvieri and he calls it M. Cuvier's Brachypus, Patria ignota. Why he associated Cuvier's name with the creature is now a mystery but the name is not as Burt states, a nomen nudum. Fitzinger, in his Neue Classification der Reptilien on p. 11 defines what he calls the family Chalcidoidea as follows: Oculis palpebris muniti; palpebris duabus; gula non dilatabilis; corpus verticillatum; tympanum latens. Under this category he next proceeds (p. 20) to define, albeit meagerly, his new genus Brachypus with the significant words, Plantae ..... tetra dactylae. Then on p. 50, in his setting forth of the reptiles preserved in the Vienna Museum, he establishes one species under his new genus Brachypus which is cuvieri of unknown provenance. Brachypus is preoccupied but that is not relevant. The one and only species was diagnosed by the generic diagnosis plus the two later qualifying words. Dr. Stejneger, who has been over this ground with me, tells me that he is under the impression that the type was still preserved in the Vienna Museum many years ago but now Dr. Wettstein writes me that it cannot be found. In 1829, Cuvier (Ed. 2, Vol. II: 66) lists, but fails to name, a form with four toes on all limbs. The generic description is quite unmistakable and Wagler in the very next year, 1830 (Syst. Amph.: 196), names the form pedibus tetradactylis by listing and including in his new genus Chalcis, which is adequately diagnosed, the species Brachypus cuvieri Fitzinger. The name at this stage stands as Chalcis cuvieri (Fitzinger). Chalcis, of course, also was long since preoccupied. We next hear of the lizard in the long and careful description of DumBril and Bibron (Erp. Gin., Vol. V, 1839: 453). Here it is stated