FISHERY BULLETIN: VOL. 76, NO. 3 



B 



Figure 2. — Semidiagrammatic lateral view of the caudal 

 peduncle and posteriormost spines of (A) a slender-bodied, long 

 peduncled species (Diodon eydouxii) and (Bl a round-bodied, 

 short peduncled species (D. holocanthus) . 



the laboratory under ambient temperature (ca. 

 25°C) and a variety of conditions. Generally, the 

 eggs were hatched in unaerated 4-1 beakers filled 

 with seawater from the collection area. Hatched 

 larvae were transferred to 10-20 1 containers and 

 provided with overhead illumination. The con- 

 tainers were wrapped in black plastic. Wild zoo- 

 plankton (ca. 60-200 ixm) from a plankton pump 

 were added on alternate days; this was later 

 supplemented with Artemia nauplii. Water was 

 changed twice a week and .specimens were re- 

 moved periodically for preservation. Many rear- 

 ing attempts were made, but since fewer than 20 

 eggs usually were available per attempt, few of the 

 attempts were successful. 



Some larvae were cleared and stained using the 

 KOH-alizarin red method of Hollister (1934). 

 Measurements and definitions of stages generally 

 follow those of Leis (1977), unless otherwise noted. 

 All drawings of eggs and larvae were made with 

 the aid of a camera lucida. 



The institutions housing the examined speci- 

 mens are as follows: Academy of Natural Sci- 

 ences of Philadelphia (ANSP); Australian 

 Museum, Sydney (AMS); Bernice P. Bishop 

 Museum, Honolulu (BPBM); British Museum 

 (Natural History) (BMNH); California Academy 

 of Sciences (CAS); Gulf Coast Research Labora- 

 tory and Museum (GCRL); George Vanderbilt 

 Foundation (GVF), deposited in CAS; Hawaii In- 

 stitute of Marine Biology (HIMB); Los Angeles 

 County Mu.seum of Natural History (LACM); 

 Museum National d'Histoire Naturelle, Paris 

 (MNHN); National Marine Fisheries Service, 

 Honolulu, Hawaii (NMFS H), La Jolla, Calif. 

 (NMFS LJ), and Miami, Fla. (NMFS M); 

 Naturhistorisches Museum, Vienna (NMV); J. L. 

 B. Smith Institute of Ichthyology at Rhodes Uni- 

 versity, South Africa (RUSI); Scripps Institution 

 of Oceanography (SIO); Tulane University (TU); 

 National Museum of Natural History, Smithso- 

 nian Institution (USNM); University of Arizona 

 (UA). A catalog number is given when available; 

 many GVF specimens were uncataloged and 

 therefore the register or station number is given. 



The synonymies include all known original 

 usage of names. In addition, references of sys- 

 tematic or zoogeographic interest are included. If 

 the identification of a nominal species is question- 

 able, it is preceded by a question mark (?). Pre- 

 Linnaean literature is cited in the text if appro- 

 priate, but is omitted from the synonymies. 



GENUS DIODON LINNAEUS 



Diodon Linnaeus 1758:334, after Artedi 

 1738. Type-species D. hystrix Linnaeus by 

 subsequent designation of International Com- 

 mission on Zoological Nomenclature, opinion 

 77. 



Paradiodon Bleeker 1865:49. Type-species D. 

 hystrix Linnaeus by original designation. 



Trichodiodon Bleeker 1865:49. Type-species D. 

 pilosus Mitchill by original designation. 



Trichocyclus Giinther 1870:316. Type-species T. 

 erinaceus Giinther by monotypy. 



Diagnosis. — Body rotund, width 0.25-0.54, depth 

 varies greatly depending on degree of inflation. 

 Eyes large, 0.05-0.17. Swim bladder bilobed. 

 Teeth in each jaw fused into a single beaklike 

 unit without a median suture dividing upper or 

 lower jaws into right and left halves. Gill opening 

 a short, vertical slit immediatelv anterior to the 



538 



