Ww CONTRIBUTION, TO. THE MORPHOLOGY OF 
DERO’ VAGA: 
HOWARD S. BRODE. 
CONTENTS. 
PAGE 
TORTI ER © TW © Te © Nese ces cee cn te ee oe ON Nea ee OS pec ae ree eenceee ea 142 
TIDES Pd Soggy RN Copa 2 Sa PAN SS ye a Oe ae a op ae ae oe te 142 
Bs G@THAGSINI CAT ONS ainccet erates toss eedeate tea Ores ese na dete own eae eesccoarsuaseentdeestee 142 
2 ete NPAC TAU ROAM ELSIE OR Weretacc ences Secret tars ke ect Anew on saetog cate Mextaseos sees eee 144 
SPM V LUPO STGE CD) S frre oe reas gts betas ota cacao ath seat any casecb secon enh caaasanenestcussetosneteaccs 147 
DATS Tie ast (@) ESE FAO) Te, ©) (Ges Vet er cere Se eB, oc wes SEs dando erent eee ese 148 
I. THE BODY WALL AND EXTERNAL CHARACTERG............ccc:::cc0:000- 148 
(SY IE 111227 IC Ai cee a Ee RE oe eR PEE Se 148 
(2) SY 7ie7 ee ec eee NT eee SON ee ean or REE A see eee nose 149 
(C) PLD EACH IES ose c cece ean Soaks Poche uea st vawssuct us tentennectutoeceseterececce neue 149 
(DPB ileryt DUA GLAMES cee awa tock ciuee Seances c Sessartsuecebaneos sesoneceeens 150 
CY ED EPAT A pe le Bem eRe US CR SEER aS EP 150 
BO OLN CRIS She ZION te Sakae wee eee nor nee er eer re eee 151 
(ap Aastoricahi soaks oe ce tee tt Bak Noes eee ES Oe I51 
(DL 29CS CHEADLE sae Sk Papeete pre cnc ones ts ecenadeasue see opera eect apoatons 152 
(OG) SACS TY TATED EDS TTL ao ee er aoc eae See SE 155 
(A) RC Ome Dar Ati e Ben ae eens eee ne cree eceaneee naeh cbaey meee eaten coe 156 
rm N SE ORGAN ooo o5 25 sactatspamdsaaus scnunoann opau szswnmapsbsiebleaauscaspsaeennpecestes 158 
(A) LI CSCH IDLE eater aah cate eee tt epee eee crs tect cbr ones eee eee 158 
(DD) Care Barts eee ear toes eee ane pa eet aoe eae nee tess te) LOO 
OL SOCRLETES ee an coer ere etn cc ese ee ean Ras ome Se ctr 160 
(c) eA etameeritce SC7SCl OPUS ere aace eae ee cee sen ee eens ee 161 
OLzOCH ete s tet Sle Ree tn As Eee te ee 161 
POUCH CLES sete Mares pees Bin a cite coatencece hasensnipstescee saree petseodes 162 
LEC CIES! Arstiae so eR NN rata gutta Lane siisuscvioust Doinabes set eorteenetea ste 162 
VORTEC DF OLE S Be en eR eet ec ate eh ne lpr ce cue a Renee 162 
ARISEN S O- CATE Ems CI AME VAT TUG DINU) 74 | tcc sesso ested ee ee ee 163 
(ARET aston cleric r ee OD GE. ce phn ccna sal enc ean eee ps pier 163 
WELDON UD LACE caste ect oe sere Lc ca seed tes vestennen suse abuse ccebaswas sate 167 
(c) Laterpretation of Previous ObservatiOns .....2.-..2ec2eereee- 168 
TV ee ENE) ORB a CAN © ONS DB RAC TO INS sees sccccna conse cee nese 169 
I. ORIGIN OF METAMERISM..........-- sobechiie (ie ack ge ke eeaes eee st en .. 169 
2. SEGMENTAL SENSE ORGANS IN ANNELIDS AND ORGANS OF 
SPECIAG SENSE IN HIGHER ANIMALS(..2.22.ccctccccectscnesesenonenes = 171 
