Naushonia crangonoides is a rare thalassinid mud shrimp which is reported to occur in Massachusetts where adult specimens have been collected from Bass River, in Vineyard Sound, and the Elizabeth Islands (Williams, 1974), but larval stages have been found as far south as the Beaufort area of North Carolina (Williams, personal communications, 1977). It was originally described by Dr. J. S. Kingsley who founded the genus and species based on a single adult male specimen that had been collected by Dr. H. C. Bumpus in the sand on Naushon Island, near Woods Hole, Massachusetts (Kingsley, 1897). A second adult, a female, was collected by G. M. Gray (1900) from a burrow ten inches deep in the sand on Ram Island, in Great Harbor, Woods Hole. Thompson (1904) obtained some Naushonia zoeae from plankton tows in the Woods Hole region during the summer of 1901 and managed to rear the earlier adolescent stages. Thompson's paper includes a com plete description of these stages and redescribes the adult form based on an examination of the two adult specimens mentioned above. Subsequent published reports on the occurrence of N. crangonoides are limited to a review of the genus by Chace (1939) and reports on larval distribution (see Sandifer, 1973). At least six additional adult specimens are known to exist. Two of these are in the Gray Museum, Marine Biological Laboratory, Woods Hole, and the other four are in the National Museum of Natural History collection, together with some larval and juvenile specimens. During the course of an ongoing study of the food habits of marine fish three specimens of Naushonia crangonoides were found in the stomach of a 166 cm female roughtail stingray, Dasyatis centroura (Mitchill). The specimens of Nau shonia were in reasonable condition and were readily distinguishable from other thalassinid shrimp because of the large subchelate claw on the cheliped of the one animal and also because of the structure of the carapace. The rostrum is flat with the tip broad and triangular, extending slightly in front of the eyes. The eyes them selves, are not readily visible and contain little pigment. No distinctive coloration was observed on our specimens or the two animals from the Gray Museum but all of them were generally a tawny to fleshy brown. The most complete of the three animals was identified as a male with a total length of 27.5 mm, measured as the straight line distance when the animal was laid flat, from the tip of the rostrum to the tip of the telson. Other measurements were as follows: carapace length, 11.1 mm; dactyl, 5.1 mm; propodus, 7.9 mm; carpus, 2.2 mm; merus 4.4 mm; and