Perrin et al.: Geographic variation in morphology of Stenella longirostns 



427 



Perrin, W.F., E.D. Mitchell, J.G. Mead, D.K. Caldwell, and 

 P.J.H. van Bree 



1981 Stenella clymene, a rediscovered tropical dolphin of the 

 Atlantic. J. Mammal. 62:583-598. 



Perrin, W.F., M.D. Scott, G.J. Walker, F.M. Ralston, and 

 D.W.K. Au 



1983 Distribution of four dolphins (Stenella spp. and Delphinus 

 delphis) in the eastern tropical Pacific, with an annotated 

 catalog of data sources. NOAA Tech. Memo. NOAA-TM- 

 NMFS-SWFC-38, NMFS Southwest Fish. Sci. Cent., La Jolla, 

 CA 92038, 65 p. 

 Perrin, W.F., M.D. Scott, G.J. Walker, and V.L. Cass 



1985 Review of geographical stocks of tropical dolphins 

 (Stenella spp. and Delphinus delphis) in the eastern Pacific. 

 NOAA Tech. Rep. NMFS SSRF-28, 28 p. 

 Peterson, C.L., and W.H. Bayliff 



1985 Organization, functions, and achievements of the Inter- 

 American Tropical Tuna Commission. Inter-Am. Trop Tuna 

 Comm. Spec. Rep. 5, 56 p. 

 Punsley, R.G. 



1983 Estimation of the number of purse-seiner sets on tuna 

 associated with dolphins in the eastern Pacific Ocean during 

 1959-1980. Inter-Am. Trop. Tuna Comm. Bull. 18(3), 299 p. 

 Reilly, S.B. 



1990 Seasonal changes in distribution and habitat differences 

 among dolphins in the eastern tropical Pacific. Mar. Ecol. 

 Prog. Ser. 66:1-11. 

 Schnell, G.D., M.E. Douglas, and D.J. Hough 



1982 Geographic variation in morphology of spotted and spin- 

 ner dolphins (Stenella attenuata and S. longirostris) from the 

 eastern tropical Pacific. Admin. Rep. LJ-82-15C, NMFS 

 Southwest Fish. Sci. Cent., La Jolla, CA 92038, 213 p. 



1985 Further studies of morphological differentiation in 

 spotted and spinner dolphins (Stenella attenuata and S. longi- 

 rostris) from the eastern tropical Pacific. Admin. Rep. 

 LJ-85-04C, NMFS Southwest Fish. Sci. Cent., La Jolla, CA 

 92038, 30 p. 

 Young, T.L., and M.L. Van Woert 



1987 PLOT88 software library. Plotworks, Inc., La Jolla, CA. 



Appendix 



Sample sizes by 5-degree block and pooling for analyses 

 of geographical variation in external morphology of the 

 spinner dolphin (blocks separated by dashed lines were 

 pooled). 



Appendix Figure 1 



Ventral field (see Figure 13). 



Appendix Figure 2 



Cape (see Figure 15). 



