66 
RTLA 500o Florida pompano, Trachinotus carolinus 
Material: Two microscope slides 
Diagnosis: Thyroid hyperplasia versus low-grade follicular carcinoma 
Submitter: R. E. Putz 
RTLA 501. Red-spotted newt, NotophthaImus viridescens 
Material: Four microscope slides 
Diagnosis: Fungi (haplomycosis) versus parasite ova 
Submitter: G. E. Cosgrove 
RTLA 502 o American oyster, Crassostrea virginica 
Material: Ten microscope slides 
Diagnosis: Diffuse sarcomoid neoplasm 
Submitter: M c Newman 
Reprint: Newman, Martin W. An Oyster Neoplasm of Apparent Mesenchy¬ 
mal Origin. J. Natl. Cancer Inst., 48: 237-243. 1972. 
RTLA 503. Australian skink, Egernia napoleonsis 
Material: One piece of liver tissue 
Diagnosis: Mycobacterial granuloma 
Submitter: E. Elkan 
RTLA 504o Starry flounder, Platichthys Stellatus 
Material: One gross specimen with extremely numerous growths mostly 
on fins and pigmented side 
Diagnosis: Granuloma in response to parasite ova plus epidermal 
hyperplasia 
Submitter: B. F. Deys 
RTLA 505. Starry flounder, Platichthys stellatus 
Material: One gross specimen with growths on fins and top and 
bottom of head 
Diagnosis: Granuloma in response to parasite ova with epidermal 
hyperplasia 
Submitter: B„ F. Deys 
RTLA 506. Mexican axolotl, Ambystoma mexicanum 
Material: Forty-six microscope slides 
Diagnosis: Lymphoma 
Submitter: L. E. DeLanney 
Reprint: DeLanney, L. E. Lymphosarcoma in the Mexican Axolotl, 
Ambystoma mexicanum . in: Comparative Leukemia Research 
1969 . Bibl. haemat.. No. 36, R. M. Dutcher (ed.), p. 642 
(Karger, Base 1/Mtinchen/Paris/New York 1970). 
RTLA 507. Everglade snake, Elaphe obsoleta rossalenii 
Material: Two pieces of tissue; two microscope slides 
Diagnosis: Malignant melanoma 
Submitter: E. Elkan 
RTLA 508. River jack or Rhinoceros viper, Bitis nasicornis 
Material: Three microscope slides 
Diagnosis: Granulocytic leukemia versus granulocytic leukemoid 
reaction 
Submitter: R„ L. Snyder 
