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RTLA 1435 (contd.) 
Material: Two microscope slides 
Habitat: New Haven area of Long Island Sound 
Diagnosis: Diffuse undifferentiated mesenchymal sarcoma 
Submitter: P. P. Yevich 
RTLA 1436. Goldfish, Carassius auratus 
Material: Four microscope slides; 1 paraffin block; 1 color trans¬ 
parency 
Habitat: In summer fish lives in a garden pond; in winter in an 
aquarium together with 2 other goldfishes 
Diagnosis: Neurilemmoma 
Submitter: I. M. Obdeyn 
RTLA 1437. Red-eared turtle, Chrysemys scripta elegans 
Material: One microscope slide 
Diagnosis: Leukoplakia and dyskeratosis possibly transitional to a 
well-differentiated squamous carcinoma 
Submitter: F. L. Frye 
RTLA 1438. Hard-shell clam, Mercenaria mercenaria 
Material: Digestive tissue 
Habitat: Maryland part of Chincoteague Bay 
Diagnosis: Chlamydiae inclusions 
Submitter: S. V. Otto, J. C. Harshbarger, and S. C. Chang 
Reprint: (See RTLA 1414-1418) 
RTLA 1439. Butterfly fish, Chelmon rostratus 
Material: One microscope slide; 2 color transparencies; 3 
photomicrographs; 1 pathology report 
Habitat: A pet in a home aquarium 
Diagnosis: Thyroid adenoma 
Submitter: M. D. Lagios 
electron 
RTLA 1440. California moray, Gymnothorax mordax 
Material: One microscope slide 
Diagnosis: Epidermal papilloma of the lip 
Submitter: M. D. Lagios 
RTLA 1441. Chinook salmon, Oncorhynchus tschawytscha 
Material: Two pieces of body wall from the caudal peduncle with 
hard fibrous lumps in the muscle 
Habitat: Upper Rakaia River, Canterbury, South Island, New Zealand 
Diagnosis: Traumatic atrophy of the muscle 
Submitter: P. M. Hine 
RTLA 1442. Northern pike, Esox lucius 
Material: An intact section of fish with an ulcerated lesion; 1 
microscope slide; 2 color transparencies 
Diagnosis: L 3 nnphosarcoma 
Submitter: G. E. Hoskins 
RTLA 1443. Rainbow trout, Salmo gairdneri 
