270 



ZOOLOGY 



female may be half an inch long ; the body is flattened, and 

 has lost most signs of segmentation, it is produced laterally 

 into two folds, which have a crimped or frilled appearance ; pos- 



FlQ. IQ^i.—CJmndracanthus gihhosus. 



A. Female from under surface. 



1. Antennae, hook-like, 



2. 1st pair of legs. 



3. 2nd pair of legs. 



4. Males adherent to female. 



5. Egg tags. 



B. Male, more highly magnified. 



1. Antennules. 



2. Antennae. 



3. Mouth paits. 



4. 1st pair of legs. 



5. 2nd pair of legs. 



6. Testis. 



7. Vas deferens. 



8. Spermatophore. 



teriorly it is produced into two long white filaments, the ovisacs. 

 The head forms a kind of hood which bears antennules and 

 antennae, the latter modified into strong hooks, by means of 

 which the animal attaches itself to its host. The labrum 

 which overhangs the mouth does not form a tube enclosing 

 the mandibles, as is often the case in this group. The 



