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UNITED STATES NATIONAL MUSEUM BULLETIN 251 



Figure 95. — Microcofmus exasperatus Heller: Specimens from Amoy: a, left half of mantle 

 body of 40 mm. specimen, inner side (USNM 11524); b, right half of same; c, dorsal 

 tubercle of same specimen; d, left half of mantle body of 30 mm. specimen, inner side 

 (USNM 11704); e, right half of same; /, dorsal tubercle of same specimen; g, dorsal 

 tubercle of 35 mm. individual (USNM n523); h, part of the liver from same specimen, 

 magnified; i, spinules from inner surface of siphons same specimen, highly magnified; 

 ;, right gonad of 30 mm. specimen (USNM 11704); k, spinule from inner surface of 

 siphons of same specimen, highly magnified; /, spinules from inner surface of siphons 

 of 28 mm. specimen, highly magnified (USNM 11704). 



