Seabird Rete 85 



In summary, all 1 1 species of procellariiform birds examined pos- 

 sessed a rete mirabile ophthalmicum. There was no correlation between 

 relative size of RMO and nesting latitude, but RMO size was relatively 

 greater in the smaller members of the order. 



ACKNOWLEDGMENTS.— Most of the specimens examined were 

 collected by David S. Lee and colleagues at the N.C. State Museum of 

 Natural History under a contract (#92375-1 130-621-16) from the Slidell, 

 Louisiana, laboratory of the U.S. Fish and Wildlife Service. This is con- 

 tribution number 1985-4 of the North Carolina Biological Survey. 



LITERATURE CITED 

 Baumel, Julian J., and L. Gerchman. 1968. The avian intercarotid anastomosis 



and its homologue in other vertebrates. Am. J. Anat. 722:1-18. 

 Berstein, Marvin H., M. B. Curtis and D. H. Hudson. 1979a. Independence of 



brain and body temperatures in flying American Kestrels, Falco sparverius. 



Am. J. Physiol. 257:R58-R62. 

 , I. Sandoval, M. B. Curtis and D. H. Hudson. 1979b. Brain tempera- 

 ture in pigeons: effects of anterior respiratory bypass. J. Comp. Physiol. 



729:115-118. 

 Brown, Leslie H., E. K. Urban and K. Newman. 1982. The Birds of Africa. Vol. 



1. Academic Press, New York. 521 pp. 

 Crowe, T. M., and A. A. Crowe. 1979. Anatomy of the vascular system of the 



head and neck of the helmeted guinea fowl Numida meleagris. J. Zool. 



(Lond.) 755:221-233. 

 Frost, P. G. H., W. R. Siegfried and P. J. Greenwood. 1975. Arteriovenous heat 



exchange systems in the jackass penguin, Spheniscus demersus. J. Zool. 



(Lond.) 775:231-241. 

 Kilgore, Delbert L., M. H. Bernstein and D. H. Hudson. 1976. Brain tempera- 

 tures in birds. J. Comp. Physiol. 770:209-215. 

 , D. F. Boggs and G. F. Birchard. 1979. The role of the rete mirable 



ophthalmicum in maintaining the body-to-brain temperature difference in 



pigeons. J. Comp. Physiol. 729:119-122. 

 Lucas, Alfred M. 1970. Avian functional anatomic problems. Fed. Proc. 



29:1641-1648. 

 Palmer, Ralph S. (Ed.). 1962. Handbook of North American Birds. Vol. 1. Yale 



Univ. Press, New Haven. 567 pp. 

 Pettit, Ted N., G. C. Whittow and G. S. Grant. 1981. Rete mirabile opthalmi- 



cum in Hawaiian seabirds. Auk 95:844-846. 

 Platania, Steven P., G. S. Grant and D. S. Lee. In press. Core temperatures of 



non-nesting Western Atlantic seabirds. Brimleyana 12. 

 Richards, S. A. 1970. Brain temperature and the cerebral circulation in the 



chicken. Brain Res. 25:265-268. 



