446 



On a new Pedunculate Cirripe.de. 



in the jr.'evalent form the median segment of the scutum 

 varies considerably in respect to tlic proximity of its base to 

 tiie base ot" tlie occludent seirment. 



Ot" the nine species of Dichelaspis discriminated by 

 Dr. Hoek it is ])0ssible tiiat Dichelaspis Wariciclcii (Gray) 

 niiglit conveniently be transt'errcd to the new genus Triche- 

 laspis, the carinal margin of the basal segment of the scutum 

 in that species being in old specimens much hollowed out. 

 It forms, however, obtuse, not acute apices. 



EXPLANATION OF PLATJ-: X\'. 



VU-. 2. Second maxilla. 



cir. 1. Cirri of tirst pair. 



c-w". (3. Termiiiiil piut of a cirrus of 



the six til pair. 

 p. Apex of penis. 

 c.a. One of the caudal appendages. 



'I'lie nionlli-nrj;ans are drawn to tlie same scale as the detached cirri 

 and Ciuulal appendage. The apical portions of tiie mandible, first 

 maxilla, and penis are still more highly majjnilied. 



w.s. Natural size. 



sc. Scutum. 



T. Terf^um. 



C tsarina. 



rn. Mandible. 



nhv. 1. First maxilla. 



