30 



PROCEEDINGS OF THE NATIONAL MUSEUM 



of collection of the specimens and the brittle nature of the thoracic 

 legs of adult females of the genus. 



Table 6. — Armature of thoracic legs I-IV of the female of Pennella species 



Discussion. — Although much of the body and many of the ap- 

 pendages and processes of the 2 specimens were apparently undamaged 

 by the ingestion and partial digestion of the host, there is some evi- 

 dence of damage (e.g., thoracic legs). For this reason it is felt that 

 specimens in better condition are essential before a name is given to 

 this species. The specimens, however, have characteristics similar 

 to several species of the genus : 



1. Pennella selaris Kirtisinghe, 1964: Similar in cephalothorax, 

 orientation of abdominal plumosities. Differs from Pennella species 

 in possessing shorter and unbranched abdominal plumosities and in 

 the arrangement of the thoracic legs. 



2. P. biloba Kirtisinghe, 1932: Cephalothorax and general body 

 shape similar. Abdominal processes unbranched in P. biloba, 

 branched in P. sp. 



3. P. diodontis Oken, 1816: Arrangement of cephalothoracic 

 papillae and abdominal processes similar. Abdominal processes 

 unbranched in P. diodontis. 



4. P. exocoeti (Holten, 1802): Arrangement and branching of 

 abdominal processes similar. Cephalothorax not bUobed in P. 

 exocoeti, nature and arrangement of cephalothoracic papillae appear 

 different. 



5. P. remorae Murray, 1856: Abdominal processes in 2 rows, as 

 in P. sp. Cephalothorax of P. remorae not lobed, with 3 horns 

 (characteristic variable), anterior end cuplike (not depressed in P. sp. ), 

 neck more distinct, abdominal processes more ramified. 



Family Anthosomatidae 



Norion Nordmann, 1864 



Diagnosis. — See Lewis, 1964a. 



