500 Cavallas and Pampanos 
resembling a berycoid, but with the ventral rays I, 5, occurs 
in the Upper Cretaceous. Closely related to this is Berycopsis 
elegans, with smoother sca'es, from the English Chalk. 
Gobiomorus gronovit (usually called Nomeus gronovit), the 
Portuguese man-of-war-fish, is a neat little fish about three 
inches long, common in the Gulf 
of Mexico and the Gulf Stream, 
where it hides from its enemies 
among the poisoned tentacles of 
the Portuguese man-of-war. 
Under the Portuguese man-of- 
war and also in or under large 
jelly-fishes several other species 
are found, notably Carangus 
medustcola and Peprilus paru. 
Many small species of Psenes, 
a related genus, also abound in 
the warm currents from tropical 
seas. 
The Rag-fishes: Icosteida. — 
Allied to the butter-fishes are 
the deep-water JIcosterde, fishes 
of soft, limp bodies as unre- 
sistent as a wet rag, Icosteus 
anigmaticus of the California 
coast being known as ragfish. 
Schedophilus medusophagus feeds 
on meduse and salpa, living on 
the surface in the deep seas, P'g.,,300.; Portuguer  Man-of-ne 
Mr. Ogilby thus speaks of a  Stromateide. 
specimen taken in Ireland: 
“Tt was the most delicate adult fish I ever handled; within 
twenty-four hours after its capture the skin of the belly and 
the intestines fell off when it was lifted, and it felt in the hand 
quite soft and boneless.” A related species (S. heathi) has been 
lately taken by Dr. Charles H. Gilbert at Monterey in California. 
The family of Acrotide contains a single species of large size. 
Acrotus willoughbyt, allied to Icosteus, but without ventral fins 
and with the vertebre very numerous. The type, five and one- 
