-4- 
Muscle tumors were represented by a rhabdomyoma in a brown trout from 
Barry J. Stevenson (RTLA 1477) and a leiomyosarcoma in a sockeye salmon 
from Gordon Bell (RTLA 1475). Other cases of interest include a thyroid 
adenoma in a butterfly fish from Michael Lagios (RTLA 1439) and in a striped 
killifish from John Grizzle (RTLA 1525). A poorly-differentiated rainbow 
trout nephroblastoma was contributed by Harold Wolf (RTLA 1446). A rain¬ 
bow trout with an ectopic reduplication of visceral organs was received 
from John Hnath (RTLA 1423) and Bob Anderson sent a sea peach showing ex¬ 
cess tunic production in response to a hydrozoan (RTLA 1406). 
REFERENCE LIBRARY 
Approximately 200 papers were added to the comprehensive library on 
neoplasms in lower animals bringing the total to 3,150. Except for re¬ 
cent acquisitions and articles that need to be translated, all papers have 
been abstracted by selected key words and computerized. 
PAPERS SINCE 1975 
Billups, L. H. and Harshbarger, J. C. "Reptiles" a Section of the Chapter, 
"Naturally Occurring Neoplastic Diseases". In: CRC Handbook of Laboratory 
Animal Science, Vol. 3 , E. C. Melby, Jr. and N. H. Altman (ed.), pp. 343- 
356, (CRC Press, Inc., Cleveland 1976). 
Leibovitz, L., Harshbarger, J. C., and Chanley, P. A Polypoid Myoma of the 
Foot of a Surf Clam ( Spisula solidisslma ). In: Proceedings of the First 
International Colloquium on Invertebrate Pathology and IXth Annual Meet¬ 
ing Society for Invertebrate Pathology, Queen’s University at Kingston , 
Canada, 1976 , pp. 148-150, (Queen's University 1976). 
Harshbarger, J. C., Shuraway, S. E., and Bane, G. W. Variably Differentia¬ 
ting Oral Neoplasms, Ranging from Epidermal Papilloma to Odontogenic 
Ameloblastoma, in Gunners {( Tautogolabrus adspersus ) Osteichthyes; Per- 
ciformes: Labridae}. In: Progress in Experimental Tumor Research, Vol . 
20 , F. Homburger (ser. ed.). Tumors in Aquatic Animals , C. J. Dawe, D. G. 
Scarpelli, and S. R. Wellings (vol. ed.), pp. 113-128, (Karger, Basel 1976). 
Harshbarger, J. C. Description of Polyps and Epidermal Papillomas in Three 
Bivalve Mollusk Species. Mar. Fish. Rev., 25-29. 1976. 
Harshbarger, J. C. "Spontaneous Neoplasms in Amphibians" and "Spontaneous 
Neoplasms in Reptiles," two Sections of Chapter 1: "Tumors". In: Pathol¬ 
ogy of Laboratory Animals, Vol. 2 , K. Benirschke, F. M. Garner, T. C. 
Jones, and C. Kozma (ed.), (Springer-Verlrg, Nex: York; In press). 
Harshbarger, J. C. The Role of the Registry of Tumors in Lower Animals in 
the Study of Environmental Carcinogenesis in Aquatic Animals. Ann. N. Y. 
Acad, Sci. (In press). 
Anderson, R. S., Jordan, L. A., and Harshbarger, J. C. Tunic Abnormalities 
of the Urochordate Halocynthia pyriformis (Rathke). J. Invertebr, Pathol. 
(In press). 
