WILLIAMS: DECAPOD AND EUPHAUSIID CRUSTACEANS 



"slurp gun". These burrow systems in Pleistocene 

 clay, referred to by Warme et al. (1978) and 

 Cooper and Uzmann (1980) as "Pueblo Villages", 

 shelter a number of invertebrate and vertebrate 

 species (Able et al. 1982; Bowman 1986; Grimes 

 et al. 1980a, 1980b, 1986). Goneplacids are rare in 

 collections made from surface vessels probably 

 because trawls or grabs cannot efficiently sample 

 the burrow systems in which these crabs have 

 been observed. Galatheids from shallower bur- 

 rows are more open to capture by conventional 

 means (Churchill B. Grimes^). 



To the brief color description quoted from 

 Chace by Guinot (1969), the following can be 

 added from notes made 14 October 1981 on ma- 

 ture males, females, and juveniles that were pre- 

 served in formalin 25 July 1981, and personal 

 communication from Churchill Grimes (fn. 2). 

 Carapace dorsally spotted with red on off-white 

 background. Same type of spots on pterygosto- 

 mian, subocular, epistomial, and subbranchial 

 areas, on external maxillipeds, and on merus, car- 

 pus, and propodus of chelipeds (dorsally, later- 

 ally, and mesially). Spots tending to coalesce 

 along front of carapace and on chelae. Red color 

 more diffuse on dorsal or exposed surfaces of 

 walking legs, becoming more distinct and intense 

 with increasing size. Fingers of chelae black. 

 Dactyls of walking legs white except for darkened 

 tips, but setae pinkish. There is some variation in 

 pattern on individual crabs. 



There is variation also in the length of the male 

 first pleopod, both in the USNM series of speci- 

 mens studied by Guinot (1969) and in the new 

 material reported here. In some specimens of the 

 latter, this appendage exceeds or at least reaches 

 the distal edge of the telson, whereas it is shorter 

 in specimens previously reported from localities 

 further south. In the latter, the third abdominal 

 segment is more angled laterally than in speci- 

 mens from the north. Thus, there seem to be some 

 differences between the northern and southern 

 populations. 



SUPERFAMILY GRAPSIDOIDEA 



Family Grapsidae 



Euchirograpsus americanus A. Milne Edwards 

 1880. Geographic range extended north from off 



^Churchill B. Grimes, Southeast Fisheries Center Panama 

 City Laboratory, National Marine Fisheries Service, NOAA, 

 .3500 Delwood Beach Road, Panama City, FL .32407-7499, pers. 

 commun. February 1982. 



Oregon Inlet, NC (Williams 1984) to Oceanogra- 

 pher Canyon at the edge of Georges Bank and 

 nearby continental slope at 155-200 m. 



SUPERFAMILY PINNOTHEROIDEA 



Family Pinnotheridae 



Dissodactylus juvenilis Bouvier 1917. The 

 ovigerous female from the Gulf of Mexico off west- 

 ern Florida, though similar in general features to 

 D. juvenilis, is very large for that species. In a 

 recent review of the genus Dissodactylus , Griffith 

 (1987) reported D. juvenilis from north of Yu- 

 catan and the Mississippi Delta. Members of the 

 genus are found in association with clypeastroid 

 echinoids (Schmitt et al. 1973), as was this speci- 

 men in a sample that included Clypeaster ravenel- 

 lii A. Agassizi. 



ACKNOWLEDGMENTS 



The following persons brought these records to 

 my attention through requests for identifications: 

 Barbara Hecker and Dennis T. Logan, Lamont- 

 Doherty Geological Laboratory, Columbia Uni- 

 versity, Palisades, NY; Kenneth W. Able, Center 

 for Coastal and Environmental Studies, and 

 Churchill B. Grimes, Department of Horticul- 

 ture and Forestry, Rutgers University, New 

 Brunswick, NJ (CBG now with Southeast Fish- 

 eries Center Panama City Laboratory, National 

 Marine Fisheries Service, NOAA, Panama City, 

 FL). Maureen E. Downey identified the echinoid. 

 Ruth E. Gibbons drafted the maps and Keiko Hi- 

 ratsuka Moore figured the galatheid. The 

 manuscript was critically reviewed by B. B. Col- 

 lette and D. L. Felder. 



LITERATURE CITED 



Able, K W , C B Grimes, R A Cooper, and J. R Uzmann 



1982. Burrow construction and behavior of tilefish, 

 Lopholatilus chamaeleonticeps, in Hudson Submarine 

 Canyon. Environ. Biol. Fishes 7(3):199-205. 

 Able. K. W., D. C. Twitchell. C. B. Grimes, and R. S. Jones. 

 1987. Tilefishes of the genus Caulolatilus construct 

 burrows in the sea floor. Bull. Mar. Sci. 40:1-10. 

 Bowman. T H. 



1986. Tridentella recava , a new isopod from tilefish 

 burrows in the New York Bight (Flabellifera: Tri- 

 dentellidael. Proc. Biol. Soc. Wash. 99(2):269-273. 

 Chace. F A, Jr 



1972. The shrimps of the Smithsonian-Bredin Caribbean 

 Expeditions with a summary of the West Indian 

 shallow-water species (Crustacea: Decapoda: 

 Natantiaj. Smithson. Contrib. Zool. 98:1-179. 



75 



