T H E N A U T I L U S A QUARTERLY JOURNAL DEVOTED TO THE INTERESTS OF CONCHOLOGISTS V L O . 57 JULY 1 943 to APRIL 1 944 , , E DITO RS AND P UB LIS HE RS A PILSB Y HENRY . R D e a e o f M l us s and Marine ve e rates p rtm nt o l k In rt b , Academ y o f Na tural Scie n ces H B IN N BAKER . URR GTO Pr fess o f Zo o lo ni ve rsit o f Pe ns a a o or gy , U n ylv ni E PHIL AD LP HI A, A. CO NTENT S Na mes of new genera and species in i tali cs Am phidro m us pa tti n sonae Iredale Ana den u lus co cke relli Hemphill Ape ro sto m a Tro schel Apertural Ridge of Bulimulidae . Aporrh ais occidentalis m ain ensis Johnson Bl a rin a hoarding snails Bostryx B ostryx a ba nca yen si s Pilsb ry B ostryx a nom pha lus Pilsb ry B ostryx dereli ctus ascenden s Pilsb ry B ostryrc endoplax Pilsb ry ’ B ostryx h ua razen szs Pilsb ry B ostryx megom phalus Pilsb ry . ' B ostryx m ulti volvzs Pilsb ry ' B ostryx weyra uchz Pilsb ry Bulimulida e B u rchi o Bartsch Busy con caric a L erv ersu m a b Busycon p , l ino ' Castali a or on ocenszs M orrison Ceri on ca bocru zen se Pilsb ry Torre . Cerion crassilab re Shuttleworth ’ Ceri on deam M . Ceri on pa uli M . Smith Cerion st ri atellum Guerin Cerithi dea h egewischi Philippi Ch ry so do m us saturns M a rtyn . Cingula eyerdam i Willett Conus , poison . ’ Con us verr ucosus van hyni ngz Rehder M x Conus , West e ic a n figured a a Pa . C ypr eidae , Centr l cific Cypraeidae of Hawa ii Dero ce ras agreste M iiller De ro ceras gra cile Rafinesqu e ' Di ad ora ja u mez Agu ayo Rehder Di plodon flucki Morrison ' Dryma eus a ngulobaszs Pilsb ry Drym ae us bourgeoi sae Rehder Drymaeu s flex uosus m ega s Pilsb ry m Drym aeus i nca M . S ith i v TH E NAUTI LUS Drym aeus i nterpi ctu s di versi pi ctus Pilsb ry . Drym aeu s tora llyi peruvi a n u s Pilsb ry Drym aeu s pu n ctatu s Da Cost a Drym aeu s produ ctoru m Rehder En si s m i n or m egi stus Pilsb ry M cGinty . E . H . sh n aur Mrs . W . , il r . Epi phran phora a tahualpa P sb y . E piphragm removal . E m n i l u a co a C . Fa sciol aria di stans Lam . Fa sciolari a princeps Sowb . Fossu la venezu elen si s Pilsb ry Olsson Fusin us du petith ou arsi Kiener G ui a nadesm a si n u osum M orrison . Heli costyla sub pu ella Pilsb ry H li l k n n i f r . e costy a tu a e s s P . Heli cost la a a y , T l ud Islands H x eli minim a True . Helm inth ogly pta n i ckli n i an a Lea Hem i m i tra tangi Chen H ’ emphill s C at alogue . Hesperari o n h em philli Binney Hu a n Chen , ew genus . u J li a equ atori a li s Pilsb ry Olsson . ax fl Lim avu s L . Lim ax marginatus Muller Lim ax m ax imus L Li o cy m a sch efi eri B artsch Rehder . i r a l to L . Littorin ea . a a . a a a Lymn e s ppressa S y , radul of Lymn a ea stagn alis L M acro chl m a ys Benson . M M aine , arl deposits . M e alo m a o m st a P . g , orto Rican M el ani a henriettas Gra y Mel ania telon aria Heude M elaniidae , Chinese M elo n gen a p atula Brod M eso n do pennsylv anicus Green . M x e ico , tra velling an d collecting in . M i crona i a s m ars a M h lli orrison . M ax a a r r il g g tes D a pa n aud . M x n i ritus P ure g hilippi . M ss s u el poi oning . N b as a e r k , l a nd shells of Neni a u ni n ensi M S . j s . mith Ne w York mollu sks TH E NAUTIL US il b r Ncapetra e us weyra uc hi P s y . Obeli sc us lai i spi ra Pilsb ry O li v ella b iplicata Sowerby . O livell a pedro a n a Conra d O livell a py cna Berry O reo h e lix of Ut a h Ori nella va n hyni ngi Bartsch . O t al a l actea in Te xas O t al a ve rm i c ulata in Te xas . ri n r Pa pui n a gartne a a Pf . Peruvi a n la nd mollusks . Ph ena cotaxus . m l Ple u ro b e a les eyi Lea . Ple uro b em a patul a Lea . a Pom a cea , sinistr l , ri a Po te a Gr y . P sada ra pi za rro Pilsb ry . Pseu do m o notis Punctum minutissimum Lea . M a . Quebec , rl deposits n il Ri m ula lo ga P sb ry . Rimul a of Florida m n on il r Ri ula pyc em a P sb y . ko w o S erm yla l onensi s Chen . m r di i ri i m ri S a ag a viridis v d a s M aury . Solomon Is . , collecting in Spissula so lidissim a Dillwyn Sph a eriidae Tany ch lam ys Benson Tara nis Jeff rey s Thais l apillus L T a u m astu s ro r at Pil h be tsi s i poensi s sb ry . T u m a stu w r ha s ey a uchi Pilsb ry . Typhi s jordi Pilsb ry Unio granadensis Conra d U r n n i m a ade s L a M . r h li nio g s e a s al . Unio patulus Lea V m ca hi n i m . enus pec e s s G . V mi n l ertigo uscu a Sterki . V r a e tigo p rvul a Sterki . Vi tri n ella bla k ei Rehder . V o luto sius a p fr gilis D a ll . Wa n a g Chen , new genu s . Xenophora robust a Verrill INDEX O F AUT HORS a s a . B ily , Jo hu L H a . B aker , or ce Burrington a r Pa B tsch , ul 1 B e uaert . 3 q , J C E e M . Bourg ois , a l a H H . Brooks , St n ey Trum n , errington , M . R . C arriker , - ui . Chen , S Fong W li m Clench , il a J Curtis , Brya n . D De xt er Ralph W . E . L. mery , D E e rdam W y , alter J ' ifi o rd . E . W G , D S i Goodrich , C alv n G W l O regg , endel H A . ackney , nne Gray Ha . D . rris , G H H . errington , B a Wi a M a 22 1 1 1 35 1 38 Ingr m , lli m rcus , 7 , 8 , , a 1 Ired le , Tom 0 R . Jackson , alph W a M K . 1 1 1 3 J cobson , orris 3 , 00 , 3 MacM ill n G 1 2 1 3 1 32 a , ordon K 7 , 0 , M cGin t y , Thomas L M P . E orrison , J . N icol , D a vid N E oland , Lowell N l n r 4 y a de , Olof O 5 O Ax A. 9 lsson , el 80 , 3 Pilsb r H A 34 3 4 1 1 8 144 y , enry , 7 , 0 , 08 , 80 , 89 , , R Ha a A 2 2 2 7 1 0 ehder , r ld 8 , 3 , 0 , 9 , 0 R E 8 eichel , leanor 100 S M mith , ax well . 59 S A . 1 orensen , St Ma a t 2 9 ewart , rgre C W 4 2 G E . ebb , lenn TH E NAU TI L 94 3 N 1 1 o . Vo l . 57 July, T RAV E LI NG AND C O L L E C T I NG I N M E XIC O S ORENS EN BY A . Now th at Me x ico has become one of the combatants in this the gre atest of all world contests it is going to be more di ffi cult a a a a for other n tionals to enter or le ve it , bec use border regul tions s a S o m a on both side are much stricter th n formerly . it y be of interest to record some previous trips an d tell what was seen and what was achieved in the way of collecting marine life in the Gulf of C aliforni a . For some years previous to 1 940 the writer had made short a a trips into the northern p rt of Lower C lifornia , known to the x a a Me icans as Baja California .