69 
RTLA 528. Plaice, Pleuronectes platessa 
Material: One paraffin block 
Diagnosis: Inflammation 
Submitter: R. Roberts 
RTLA 529. Plaice, Pleuronectes platessa 
Material: One paraffin block 
Diagnosis: Inflammation 
Submitter: R. Roberts 
RTLA 530. Coho salmon, Oncorhynchus kisutch 
Material: Large tumor; one color photograph 
Diagnosis: Fibroma 
Submitter: G. R. Bell 
RTLA 531o Tilehorned prionus -- larvae, Prionus imbricornis 
Material: Twenty-nine microscope slides 
Diagnosis: Multiple granulomas in hemocoel 
Submitter: G. E. Cosgrove 
RTLA 532. Elephant trunk snake, Acrochordus javanicus 
Material: Two microscope slides; one photograph 
Diagnosis: Ovarian fibroma 
Submitter: P„ Zwart 
RTLA 533. Coho salmon, Oncorhynchus kisutch 
Material: One gross specimen 
Diagnosis: Osteoma 
Submitter: J. G. Hnath 
RTLA 534. Red-spotted newt, Notophthalmus viridescens 
Material: Three microscope slides 
Diagnosis: Adiaspiromycosis 
Submitter: G„ E. Cosgrove 
RTLA 535. Enchytraeus sp. 
Material: Gross specimens from colony with reduced reproduction 
Diagnosis: Parasitized by nematodes 
Submitter: G. E. Cosgrove 
RTLA 536o Sheepshead minnow, Cyprinodon variegatus 
Material: One gross specimen with seven large surface protrusions 
Diagnosis: Parasitic lesions in response to Myxosporida 
Submitter: B. B. Collette and M 0 Wiley 
RTLA 537. Freshwater bivalve, Dreissena polymorpha 
Material: Six microscope slides 
Diagnosis: Granuloma 
Submitter: B. S. Morton 
RTLA 538. Black-lip pearl oyster. Pinetada margaratifera 
Material: Two photographs; eight microscope slides 
Diagnosis: Benign fibrovascular polyp 
Submitter: T. G. Dix 
Reprint: Dix, Trevor G. Two Mesenchymal Tumors in a Pearl Oyster, 
Pinetada margaritifera , J. Invertebr. Pathol., 20(3): 317- 
3 20. 1972. 
