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RTLA 2350, 2351. Rainbow trout, Salmo gairdneri 
Material: One microslide each 
Diagnosis: Nephroblastoma 
Submitter: C. E. Smith 
RTLA 2352. Tiger salamander, Ambystoma tigrinum 
Material: Digestive tract with multiple polyps 
Diagnosis: Reactive fibrous polyps — probably to trematode 
larvae 
Submitter: F. L. Rose 
RTLA 2353. Gorgonlan, Pseudoplexaura porosa 
Material: Four branches: one with nodular growth; 3 with 
enlargements 
Habitat: East end of Bermuda, St. David's Head 
Diagnosis: Separation of skeletal laminae by filamentous 
green alga infection 
Submitter: K. Muzik 
Reprint: Goldberg, W. M. and J. C. Makemson. 1981. 
Description of a tumorous condition in a 
gorgonian coral associated with a filamentous 
green alga. Abstracts of the Fourth International 
Coral Reef Symposium: The Reef and Man, 18-22 May 
1981, Manila, Philippines, p. 24, University of 
the Philippines: Diliman, Quezon City. 
RTLA 2354. Gorgonian, Pseudoplexaura porosa 
Material: Bisected, oval, nodular growth 
Habitat: East end of Bermuda, The Narrows 
Diagnosis: Separation of skeletal laminae by filamentous 
green alga infection 
Submitter: K. Muzik 
Reprint: (see RTLA 2353) 
RTLA 2355. Axolotl, Ambystoma mexlcanum 
Material: Growth from the liver of an albino animal 
Diagnosis: Abscess 
Submitter: R. Verhoeff-de Fremery 
RTLA 
2356. Soft-shell clam, Mya arenaria 
Material: Six paraffin blocks 
Habitat: Choptank River, Benoni Point, Chesapeake Bay 
Diagnosis: Prokaryote inclusions — several types 
Submitter: S. V. Otto 
RTLA 2357. American oyster, Crassostrea virginica 
Material: One microslide; 1 paraffin block; glutaraldehye-fixed 
parasites 
Habitat: Chesapeake Bay; Patuxent River — Broomes Island 
Diagnosis: Xenoma with thigmotrichs 
Submitter: S. V. Otto 
