ISOPODS OF XORTH AMERICA. 



87 



CIROLANA MAVANA Ives. 



Cirolana inayana Ives, Proc. Acad. Nat. Sci. Phil., 1891, pp. 186-187, pi. vi, fijis. 

 3-10.— Richardson, Proc. U. S. Nat. Mus., XXTII, 1901, j). 512.— Moore, 

 Bull. U. S. Fish Comin., XX, Pt. 2, 1902, p. K56, pi. viii, figs. 1-5. 



Localitiefi. — Coast of Yut-atan; Santa Marta, United States of Colom- 

 bia; Boqueron Bay and Culohra, Porto Rico; Brandon's, Barbados 

 Beach; San Francisco Bay, Lower California. 



A large number of dried specimens from San Fi-ancisco Bay, Lower 



Fig. 66.— Cirolana mayana (Aktek Mookki. a, Gknekai. figure, h, Head, c, First antenna. 



d, Skcond antenna. 



California, sent to me ])y Doctor Kitter, of the University of Cali- 

 fornia, agree so perfectly with the specimens in the U. S. National 

 Museum from localities above cited that I have not been able to sepa- 

 rate them. 



per paria latiora, plus produeta, altius carinata, angulo posteriore subacuto; epimera 

 septimi paris segmenta quattnor anteriora cauda^ longitudine explentia. 



Pedes trinin parium anterioruin sat robusti, articulo secundo elongato, (juarto 

 brevissiino angulo exteriore ultra ajMceni articuli quinti proniinente; pedes ,«ecundi 

 et tertii parium articulo sexto inulto latiore quam in speciebus ceteris, longo, duplo 

 longiore quam latiore. 



Pedes parium quattuor posterionun l)reves, sat rol)Usti; pedes sexti et septimi 

 parium inter se sub;eque longi, pedibus quinti i)aris paulo longiores. 



Segmenta (luinque anteriora eaudie detecta, brevissima, alte convexa; segmentum 

 quintum angulis lateralibus non a segmento quarto tectis. 



Pleopoda parium anteriorum satis longis instructa. 



8egmentum ultimum caudfe aliquanto latins quam longius, subtrigonum, apice 

 brevius, subrecte truncato, non spinoao, alte convexum, dorso alte tricarinato et 

 inter carinas profunde et a'(|ualiter excavato; carin;e dua> laterales postice paulum 

 divergentes, paulum arcuat;e. 



Uropoda brevia, lata, caudam non superantia. liamns interior plus duplo longior 

 ((uain latior; margo exterior valde excurvatus, paulum ante medium subangulatus, 

 parte distali irri'gnlariter serrata, non spinosa; margo postero-interior interum valde 

 excurvatus, fere angulatus, setis nonnullis brevissimis instructus; apex angulum 

 valde obtusum formans, setis nonnullis longioribus instructus. Ramus exterior ramo 

 interiore multo brevior, huic forma similis. Scapus angulo interiore minus producto, 

 non ad medium ramum interiorem prominente. 



Color flavo-brunnescens, nonnihil grisescens. — Hansen, Vidensk. Selsk. 8kr., («>), 

 V, 1890, pp. 351-353. 



