-13- 
RTLA 2083. Blue mussel, Mytllus edulis 
Material: 
Habitat: 
Seventy live animals 
Roosevelt Inlet at mouth of Canary Creek, Lewes, 
Delaware 
Diagnosis; 
Rickettsia-like organism in digestive diverticula 
cells (one animal) 
Submitter: 
R. P. Higgins 
RTLA 2084. Yellowfin sole, Limanda aspera 
Material: 
Piece of skin and muscle tissue with embedded cyst-like 
growths; metacercariae; 2 black and white photographs 
Habitat: 
Diagnosis: 
Submitter: 
Auke Bay, Alaska 
Parasitism by the trematode, Stephanostomum sp. 
H. L. Ching 
RTLA 2085-2087. 
Material: 
Hard clam (quahog), Mercenaria mercenaria 
Three microslides each; 1 paraffin block each (blocks 
returned to submitter after sections were cut) 
Habitat: 
Dutch Island Harbor, lower Narragansett Bay, Rhode Island 
(relatively unpolluted) 
Diagnosis: 
Germinoma, electron microscopy of nuclear inclusions 
negative for virus particles 
Submitter: 
H. Diamond 
RTLA 2088-2090. 
Material: 
Hard clam (quahog) Mercenaria mercenaria 
Three microslides each; 1 paraffin block each (blocks 
returned to submitter after sections were cut) 
Habitat: 
Saunderstown, lower Narragansett Bay, Rhode Island 
(in the vicinty of a sewage outfall) 
Diagnosis: 
Germinoma, electron microscopy of nuclear Inclusions 
negative for virus particles; chlamydia inclusions in 
digestive diverticula cells of RTLA 2088 and RTLA 2090 
Submitter: 
H. Diamond 
RTLA 2091. Soft clam, Mya arenarla 
Material: 
Habitat: 
Diagnosis: 
Fifty-three live clams 
Searsport, Maine (petroleum spill site) 
Germinoma (3 animals); rickettsia with phage in di¬ 
gestive diverticula cells (one animal) 
Submitter: 
J. C. Harshbarger, J. Hurst, and R. Dow 
RTLA 2092. Blue mussel, Mytilus edulis 
Material: 
Fifty live mussels 
Habitat: 
Diagnosis: 
Submitter: 
Searsport, Maine (petroleum spill site) 
"Normal” 
J. C. Harshbarger, J. Hurst, and R. Dow 
RTLA 2093. Mexican axolotl, Ambystoma mexicanum 
Material: 
Carcass and dissected tissues from the liver, heart, 
spleen, gut, kidney, lung, skin, and dorsal tall fin 
Habitat: 
Diagnosis: 
Submitter: 
Laboratory reared 
"Normal" 
L. E. DeLanney 
