29 
RTLA 160. Sydney rock oyster, Crassostrea commercialis 
Material: One gross specimen 
Diagnosis: Papillary epithelioma of mantle 
Submitter: P. H. Wolf 
Reprint: [see RTLA 107] 
RTLA 161. Sydney rock oyster, Crassostrea commercialis 
Material: One gross specimen; 1 photograph 
Diagnosis: Papillary epithelioma of mantle 
Submitter: P. H. Wolf 
Reprint: [see RTLA 107] 
RTLA 162. Sydney rock oyster, Crassostrea commercialis 
Material: One gross specimen; 1 photograph 
Diagnosis: Papillary epithelioma of mantle 
Submitter: P. H. Wolf 
Reprint: [see RTLA 107] 
RTLA 163. Walleye, Stizostedion vitreum vitreum 
Material: One gross specimen; 3 slides; 8 photographs 
Diagnosis: (1) lymphocystis 
(2) dermal sarcoma 
Submitter: R. Walker 
Reprint: Walker, Roland. Lymphocystis Warts and Skin Tumors 
of Walleyed Pike. Rensselaer Rev. Grad. Studies, No. 14. 
pp. 1-5, Rensselaer Polytechnic Institute, Troy, N.Y. 
1958. 
RTLA 164. Walleye, Stizostedion vitreum vitreum 
Material: Three paraffin blocks; 2 slides 
Diagnosis: Epithelioma 
Submitter: R„ Walker 
Reprints: Walker, Roland. Virus Associated with Epidermal 
Hyperplasia in Fish. Natl. Cancer Inst. Monogr. 31 : 
195-207. 1969. 
Walker, Roland. Epidermal Hyperplasia in Fish: Two 
Types Without Visible Virus. Natl. Cancer Inst. Monogr. 
31: 209-213. 1969. 
RTLA 165o English sole, Parophrys vetulus 
Material: Four groups of gross specimens 
Diagnosis: Cuticular papillomas 
Submitter: R. C. Cooper and C. A. Keller 
Reprint: Cooper, Robert C. and Carl A. Keller. Epizootiology of 
Papillomas in English Sole, Parophrys vetulus . Natl. 
Cancer Inst. Monogr. 3_1: 173-185. 1969. 
RTLA 166o Ramirez's dwarf cichlid, Apistogramma ramirezi 
Material: One gross specimen; 5 photographs; 3 slides 
Diagnosis: Lymphocystis 
Submitter: R. Kanazawa 
