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RTLA 72. Osteichthyes 
Material: Three specimens 
Diagnosis: Pachyostose operculars (fossils) 
Submitter: J. T. Gregory 
RTLA 73o American bullforg, Rana catesbeiana 
Material: Fourteen paraffin blocks; 3 photographs; 7 slides 
Diagnosis: Inflammatory lesions 
Submitter: D. DuBois 
RTLA 74. Snapping turtle, Chelydra serpentina 
Material: Eleven paraffin blocks; 3 photographs; slides 
Diagnosis: Degenerative lesions 
Submitter: D. DuBois 
RTLA 75. Guppy, 
Material: 
Diagnosis: 
Submitter: 
Poecilia reticulata 
Thirteen fish -- 6 with thoracic teratomas; 
21 photographs 
Teratoid anomalies 
R. Wenk 
96 slides; 
RTLA 
76. Moon 
Material: 
Diagnosis: 
Submitter: 
Reprint: 
snail, Polinices lewsii 
Three slides 
Infection -- with inflammatory reaction 
R. L. Taylor 
Smith, Albert C. and Ronald L. Taylor. Tumefactions 
(Tumorlike Swellings) on the Foot of the Moon Snail 
Polinices lewsii . J. Invertebr. Pathol., 10(2): 
263-268. 1968. 
RTLA 77. Rainbow trout, Salmo gairdneri 
Material: Two fish; 5 livers; 12 slides 
Diagnosis: (1) hepatomas; (2) trabecular hepatocarcinoma; and 
(3) adenosarcoma (carcinosarcoma) 
Submitter: J. H. Wales 
Reprint: Wales, J. H. and R. 0. Sinnhuber. An Early Hepatoma 
Epizootic in Rainbow Trout, Salmo gairdnerii . Calif. 
Fish Game, 52: 85-91. 1966. 
RTLA 
78. Spruce 
Material: 
Diagnosis: 
Submitter: 
budworm, Choristoneura fumiferana 
Seventeen larvae and one pupa; 4 photographs 
Epidermal necrosis and hyperplasia with sloughing of 
the cuticle possibly due to contact with a toxic material 
R. L. Lyon 
RTLA 79. Crayfish, Orconectes rusticus 
Material: One slide 
Diagnosis: Duct obstruction with necrosis and inflammatory 
reaction in the hepatopancreas 
Submitter: J. Hubschman 
RTLA 80. Earthworm, Lumbricus sp. 
Material: One earthworm; 4 photographs; 10 slides 
Diagnosis: Multiple parasitic lesions 
Submitter: E. Holland 
