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Me Axilla and base of fin well blackened: Length 178 to 240 
mm, One from Fiji and another from the Hawaiian Islands, 
We have compared Hawaiian examples in the Academy and 
find all our material in agreement. An example in the Com- 
mercial Museum of Philadelphia, from Pinta Arenas in Costa 
Rica, is 254 mm. long. Color in alcohol pale or whitish 
and a ma few wide scattered and variably darker spots 
persisting. When fresh its color doubtless with darker 
reticulations, 
Tetrodon nigropunctatus Schneider 
Head 2 3/5 to 2 2/3; depth (collepsed) about 2 1/8 to 
zeros DU. 4, OF A. 0, 103 PF. 4, 17%: head width 1 2/5 to 1 3/5 
in its length; snout 1 4/5 to 2 1/4; eye 5 to 6: interorbitel 
27/8, slightly conceve. Most of body finely roughened, 
prickles stronger in larger example and especially numerous 
over inflatable abdomen. Color in alcohol largely dull brown, 
more or less uniform generally. Body with several small black- 
ish-brown scattered spots, more numerous and variable in smsall- 
er example, some extending even half on back. Fins dull brown, 
Length 70 to 148 mm, One from Fiji and one from Oahu, 
sg . 
Tetrodon immaculatus (Schneider). trgd 
Head 3 1/4; depth 2 3/4; D. 1, 83 A. 1, 8; P.di, 14; 
snout 2 in head; eye 6; interorbital 23; level; head width 
11/4. Abdomen, most of hind part of head and back, with 
