With the fragmentary material at hand it is difficult, well nigh impossible, to make hard and fast taxonomic judgments concerning the number of species, genera, or families represented. Birds with very similar wing or leg elements could have had completely different feeding adaptations and could represent ancestral forms leading to different modern groups not considered to be closely related. For example, without the skull, _Presbyornis_ could not be determined as having anything to do with the Anseriformes (Olson and Feduccia, 1980b: 12-13). Late Cretaceous fossil birds of modern aspect have been described in a variety of genera, most of which have been used as the basis for family-group names. Taxa from New Jersey that appear to belong with the “transitional Charadriiformes” for which family-group names are available include: Graculavinae Fürbringer, 1888; Palaeotringinae Wetmore, 1940; Telmatornithidae Cracraft, 1972; and Laornithidae Cracraft, 1973. Taxa from Upper Cretaceous deposits in western North America that appear to fall in the same category (Olson and Feduccia, 1980a) include: Apatornithidae Fürbringer, 1888; Cimolopterygidae Brodkorb, 1963a; Torotigidae Brodkorb, 1963a; and Lonchodytidae Brodkorb, 1963a. Tertiary taxa that may possibly be related to the “transitional Charadriiformes” and that have been used as the basis of family-group names are: Presbyornithidae Wetmore, 1926 (Nautilornithinae Wetmore, 1926, and Telmabatidae Howard, 1955, are definitely synonyms); Scaniornithidae Lambrecht, 1933; and Dakotornithidae Erickson, 1975. Doubtless there are others that we have overlooked. How many families are actually represented here and what their interrelationships may be is purely a matter of conjecture in the absence of better fossil material. Because the entire skeleton of _Presbyornis_ is known, the familial name Presbyornithidae may justifiably be retained and used for that genus. In the case of the Cretaceous birds under consideration here, we have decided for the time being to adopt a version of paleobotanical convention in recognizing a “form family” Graculavidae, which implies a general similarity in morphology of the constituent taxa, although the material available is simply not sufficient for determining phylogeny or key adaptations. =Genus Graculavus Marsh, 1872= _Limosavis_ Shufeldt, 1915:19. Type-Species.--_Graculavus velox_ Marsh 1872, by subsequent designation (Hay, 1902). Included Species.--Type species only. Remarks.--_Limosavis_ Shufeldt, 1915, substitute name for _Graculavus_, considered inappropriate; not used in direct combination with any specific name when originally proposed. =_Graculavus velox_ Marsh, 1872= Figure 4 _b,d,f,h_ _Graculavus velox_ Marsh, 1872:363. _Limosavis velox_ (Marsh).--Lambrecht, 1933:546. Holotype.--Proximal end of left humerus, YPM 855.