13 
RTLA 24. White sucker, Catostomus commersoni 
Material: One fish 
Diagnosis: Ovarian cyst (non-neoplastic) 
Submitter: M„ Stanton 
RTLA 25. Rainbow trout, Salmo gairdneri 
Material: Three jars of gross specimens; 16 photographs 
Diagnosis: Hepatoma 
Submitter: C. E. Dunbar 
RTLA 26o Drosophila melanogaster 
Material: One block; 9 slides; 14 photographs 
Diagnosis: Melanotic lesions involving fat body 
Submitter: S. Ghelelovitch 
Reprint: Ghelelovitch, Sabbas. Effets tumorigenes de la leucine, 
de l'uridine et de la thymidine tritides chez les larves 
de la Drosophile . C. R„ Hebd. Seances Acad. Sci., Ser. D 
Sci. Nat. (Paris), 262: 1173-1176. 1966. 
RTLA 27. Spruce sawfly. Diprion hercyniae 
Material: Twelve adults; 3 pupae; numerous midgut tumorlike bodies 
42 slides 
Diagnosis: Polyhedral virus infection 
Submitter: M 0 M 0 Neilson 
Reprint: Neilson, M. M. and D. E„ Elgee. Tumorlike Bodies in 
Virus-Infected and Noninfected Adults of the Spruce 
Sawfly, Diprion hercyniae . J„ Invertebr. Pathol., 
10: 70-75. 1968. 
RTLA 28. Greater wax moth. Galleria me Hone 11a 
Material: Three slides; 15 photographs 
Diagnosis: Whorl formations in irradiated animals by hemocytes 
Submitter: J. C. Harshbarger 
Reprint: Harshbarger, John C. and B. Shain Moore. Some 
Effects of X-irradiation on Larvae of Galleria 
mellonella . J. Invertebr. Pathol., 8/2): 277-279. 
1966. 
RTLA 29o Sea lamprey, Petromyzon marinus 
Material: Two pieces of skin; 10 slides 
Diagnosis: Inflammation associated with bacterial infection 
Submitter: L. N. Allison 
RTLA 30. Planarian, Dugesia dorotocephala 
Material: Four adult planarians; 66 slides; photographs 
Diagnosis: Swellings — dorsum of tail; indeterminate nature 
Submitter: R. Kenk 
RTLA 31o Claw-footed toad, Xenopus laevis 
Material: One block of fixed material; 4 photographs; 18 slides 
Diagnosis: Tuberculoma -- leg muscle 
Submitter: E. Elkan 
