58 U. S. p. R. R. EXP. AND SURVEYS ZOOLOGY 47TH PARALLEL. 
sider as B. nasicus Sclionh., but the rostrum has only a very few punctures near the base, the 
thorax is more generally rounded in front, and the elytra are more regularly narrowed from 
the base and less rounded on the sides ; the color of the pubescence is almost entirely uniform. 
Baridius Schonherr. 
B. macer, niger nitidus, elongatus, capite rostroque confertim punctatis hoc ad basin transversim 
impresso arcuato, '^thorace paulo breviore ; thorace latitudine hand longiore, a basi sensim, ad 
apicem subito rotundatim angustato, sat dense grossing punctate, linea dorsali vix conspicuo ; 
elytris vix impressis, striis profundis leviter punctatis, interstitiis uniseriatim punctulatis, 
pygidio grosse confluenter punctato. Long. 'IS — "IS. 
San Francisco ; belongs to Schonherr's Stirps 1. 
B seriatus, elongatus, niger subnitidus^ capite parce punctulato, opaco, rostro rugose punctato, 
arcuato, thorace vix breviore, ad basin transversim impresso ; thorace grosse punctato ; latitudine 
vix longiore, lateribus subparallelis ante medium valde rotundatis ; elytris striis impunctatis 
profundis, interstitiis uniseriatim fortius punctulatis. Long. '09. 
One specimen found at San F rancisco ; belongs to the same division as the preceding. 
Analcis Schonherr. 
A. morhillosiis, elongatus ovalis, niger, thorace latitudine paulo longiore, lateribus pone 
medium, subparallelis ante medium rotundatis, disperse at profunde foveatim punctato, spatio 
dorsali sublaevi baud elevato, guttis utrinque ad medium albo-pilosis, elytris maculis albopubes- 
centibus variegatis, seriatim foveatim punctatis, interstitiis subrugosis. Long. •2. 
One specimen found at San Francisco. Nearly allied to A. foveolatus, (Tyloderma foveolatum 
Say,) but distinguished by the thorax being not carinate, much less densely foveolate and not 
narrowed or rounded on the sides behind the middle ; also by the spots being formed of white 
instead of yellow pubescence. 
EHYNCOPnoROS Schonherr. 
R. asperulus, elongato-ovalis, niger nitidus, fronte foveato, rostro ad latera punctato, thorace 
latitudine longiore, minus subtiliter punctato, punctis ad latera asperatis, linea dorsali vix 
distincta ; elytris striis fortiter punctatis, interstitiis uniseriatim subtiliter punctatis, seriebus 
saepe paulo coufusis. Long. "5. 
One specimen, Sacramento ; Mr. Wittick. The punctures of the thorax become gradually 
muricated towards the sides, where they are acute and terminated by a very short bristle. 
Sphenophorus Schonherr. 
S. gentilis, piceo et rufo-piceo variegatus, nitidus, elongatus, rostro cylindrico, punctato, ad 
basin canaliculato, canali in fovea frontali desinente ; thorace latitudine longiore, lateribus paral- 
lelis antice rotundatis, ad apicem breviter tubulato, dense grosse punctato, linea latiuscula 
dorsali laevi ; elytris striis valde profundis, modice punctatis, interstitiis uniseriatim subtiliter 
punctatis. Long. '28 — "Se. 
San Jose, California ; belongs with most of our native species to the division of the genus 
with narrow tarsi and cylindrical rostrum, but differs from all others in my collection by the 
thorax being without impressions, and having only a single elongated dorsal smooth space. 
