267 
antice subcanaliculatd; labio anticé callo terminato; labro dila- 
tato, extus incrassato, margine flexuoso. 
Hab. Isle of Capul, Philippines. Mus. Cuming. 
16. Rissorna caxata, A. Adams. R. testd subulato-turritd, 
albidd, solidd ; anfractibus octo, convexiusculis, supremis cla- 
thratis, ultimo cingulis elevatis, equalibus, subdistantibus, 
transversis, interstitiis lineis elevatis, longitudinalibus et trans- 
versis, decussatim. ornato ; aperturd semiellipticd, anticé sub- 
canaliculatd ; labio calloso ; labro anticé dilatato, margine in- 
crassato, subreflexo. 
Hab. Siquijor. Mus. Cuming. 
The two following species are true Risso, characterized by the 
simple aperture, which is not channeled in front, and by the absence 
ef the calcareous appendage to the operculum. Many species of 
small shells have been inaccurately referred to Rissoa, some of which 
belong, however, to entirely different families. 
' 
cae Becua, A. Adams. R. testd turrito-subulatd, albd, 
solidd; anfractibus quinque, planiusculis ; spird apice obtuso, 
lineis transversis, elevatis, concentricis, confertis, ornatd ; 
aperturd ovali, antice integra; labio subcalloso; labro sub- 
dilatato, extus marginato, margine flecuoso. 
Hab. Philippine islands. Mus. Cuming. 
Rissoa Evecans, A. Adams. RR. testd subulato-turritd, albd, 
semipellucidd ; anfractibus 7, convexiusculis ; suturd canalicu- 
latd, lineis elevatis transversis concentricis et longitudinalibus 
concinné decussatd; aperturd ovali, subproductd, anticé inte- 
gra; labio calloso; labro anticé dilatato, extus varicoso, mar- 
gine acuto, subreflexo. 
Hab. Philippmes. Mus. Cuming. 
2. DESCRIPTIONS OF SEVERAL NEW SPECIES OF Murex, Ris- 
SOINA, PLANAXIS, AND EvULIMA, FROM THE CUMINGIAN 
Couutection. By Artuur Apams, F.L.S. etc. 
1. Murex tostomus, A. Adams. WM. testd ovato-fusiformi ; 
spird acuminatd; anfractibus planulatis, squamulosis, spinis 
acutis, in serie elevato disposito ornatis, cinered ; anfractu ul- 
timo spinis elevatis, bifidis, in seriebus quatuor dispositis in- 
structo, varicibus sex, longitudinalibus ; aperturd ovato-oblongd, 
intus violaced ; labio subtuberculari ; labro fimbriato. 
Hab. Philippines. Mus. Cuming. 
2. Murex soxtipus, A. Adams. WM. testé solidd, profundé um- 
bilicatd, albd ; spird brevi, obtusd ; anfractibus planulatis, lon- 
gitudinaliter plicato-varicosis (varicibus in anfractu ultimo 7), 
transversim liratis ; liris, ad plicas, incrassatis, interstitiis lon- 
