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RTLA 1270. Pseudotropheus tropheops 
Material: Gross specimen with a growth on the body wall 
Diagnosis: Neurilemmal sarcoma 
Submitter: G. C. Blasiola, Jr. 
RTLA 1271. Hard-shell clam, Mercenaria mercenaria 
Material: One paraffin block 
Diagnosis: Intracellular inclusions 
Submitter: S, V. Otto 
RTLA 1272. Mussel, Modiolus modiolus 
Material: Four microscope slides 
Diagnosis: Benign neoplasm of vesicular connective tissue 
Submitter: R. J. Roberts 
RTLA 1273. Coho salmon, Oncorhynchus kisutch 
Material: One gross specimen with a large growth on the left side 
Diagnosis: Nephroblastoma 
Submitter: G. E. Hoskins and G. R. Bell 
RTLA 1274-1374. 
Material: 
Diagnosis: 
Submitter: 
Soft-shell clam. Mya arenaria 
One hundred twenty-five microscope slides; 211 paraffin 
blocks 
Approximately one-third of the cases have been examined; 
all are germinomas 
P. P. Yevich 
RTLA 1375. Creek chub, Semotilus atromaculatus 
Material: One gross specimen with 4 lesions: 1 under the right 
lower jaw; 1 on the left lateral body wall, posterior 
to the vent; 1 on the left peduncle; and 1 internally 
(mid-ventral) attached to the body wall 
Diagnosis: Protozoan cyst, Myxobolus sp. suspected 
Submitter: W. J. Buc 
RTLA 1376. Brown bullhead, Ictalurus nebulosus 
Material: Four microscope slides 
Diagnosis: Oral epidermal papilloma 
Submitter: K. E. Wolf and E. J. Washuta 
RTLA 1377. Chinook salmon, Oncorhynchus tshawytscha 
Material: A large piece of body wall; 4 color photographs 
Diagnosis: Partial reduplication of the digestive tract; develop¬ 
mental anomaly 
Submitter: J. G. Hnath 
RTLA 1378. Snapper 
Material: Nineteen microscope slides 
Diagnosis: Neurilemmoma 
Submitter: M. M. Sigel 
