APPENDIX A 



The following data were obtained too late for inclusion in the body of the paper but do not 

 contradict the results discussed. 



It is perhaps worthwhile to note that horseshoe crabs tagged in 1952 were still available for 

 recovery in 1956. As the majority of the crabs tagged were mature, this would indicate infrequent, 

 if any, molting of mature horseshoe crabs. 



Tag Recoveries During 1956 



Date and location crabs were 

 Released 



Date and location crabs were 

 Recovered 



8/22/52 - North of Rowley, Middleground 



8/12/52 - Haskell's Landing - Essex 



8/12/52 - Ipswich Yacht Club 



8/25/52 - Point Peter 



8/-/55 - Cranes B. 



Ni/- ^y - 140i/mm. 

 (Sent in Sept. 1956) 



6/16/56 - Wingaersheek Beach, Ip. 

 N - F - 160 mm. 



7/15/56 - Plum Island 



N - M - 111 mm. 



6/16/56 - Eagle Hill R. 



A - M - 131 mm. 



8/28/52 - Horseshoe Flat 



7/13/56 - Wingaersheek Beach 

 N - F - 160 mm. 



7/21/53 - Point Peter 



8/23/56 - Sargents Beach, Gloucester 



N - F - 154 mm. 



9/ 1/53 - Point Peter 



6/ 7/56 - Plum Island B. 



N - M - 125 mm. 



U Symbols for search groups: N = Nonalerted; A = alerted 

 2/ Symbols for sex of crabs: F = female; M = male 



3/ Size in mm . 



15 



INT.-DUP SEC. WASH.. DC j 



