250 REPORT—1843. 
Distribution. 




Class GASTEROPODA. 
Order Nudibranchiata. 
Doris tuberculata, Cuv.; D. argo, Penn. ..ccrccccccssesvcccsvcccnens ode peneree 
»» repanda, Alder & Hancock, Ann. Nat. Hist. vol. ix. p. 32 ....cessseesleeeleee 
}) bilamellata, Lin. ; Ds verrucosa, Penns (..icccceccsessccdecsneecttocaecee 
»» affinis, Thomp. Ann. N. H. vol.v. p.85 1.) ose. He Cr EELE tise ¥ 
3» Ulidie, Thomp. MSS. (1.)......0+4 siaseue waclabaaes sadde datvdisads sigeewiee 
»» mouricata, Mull. Thomp. Ann. N. H. vol. v. p. 86 cccccccceeeeeceeseees 
»» aspera, Ald. & Hanc. Ann. N. H. vol. ix. p. 32 c.scscesessesenseeeeeeaelens 
»» pilosa, Cuv.; D. nigricans, Flem. .....+sse+++0 emia tah a tides ania nate nee 
», sublevis, Thomp. Ann. N. H. vol. v. p. 87 (1.) ....sscsecsseeseeee recat 
Gontodoris nodosa, WMont."Gp.)* c..c...-cnseseoscocaeceaccecaccaccssoe Sreatarace 
var. G. Barvicensis, Johnst. (Sp.)  ...cccccsceesssecceceees eR rad |e 
vs elongata, Thomp. Ann. N. H. vol. v. p. 88 (1.) ...eseecceeesecseclene 
Polycera quadrilineata, deci livGs py) slab cases te sacas cbecseccbese custeckccteeet duces 
»»  typica, Thomp. Ann. N. H. vol. v. p. 92 (1.) ...... desde wobec Seseee 
»  ocellata, Ald. & Hanc. Ann: N.H. vol. ix. p. 33. cis.cccsepseccsscsloes 
soi, Cltrinay Ald. pAmn Nad. VOls Wisp ps SA OM ooaendedaab. cccsnsa nan sosasealaey 
» cristata, Ald. os Tis maken. cxckas acilgsnss eaeeeee les 
Euplocamus claviger, Mull. (Sp.) ssscrscsseeecscrseetceneeesecessevseesensens 
syn. E. plumosus, Ann. N. H. vol. v. p. 90 .sescssesesseeeseeneeenes - 
E. pulcher, Mag. N. H. vii. p. 490. & Ann. N. H. vii. p. 480. 
Tritonia Hombergii, Cuv.  ........05 Ed edaneorensctvesddes usage Spec dsenee Brecronee noel 
»»  Pplebeia, Johns. Ann. N. H. vol. i. p. 115 ...cseseceeeesseeeseeeeteneeeelevsleeslens 
»»  arborescens, Cuv. ...++. gates betes cadets tesdenee ss wiidsjevttadeuguand 
var. T. lactea, Ann. N. H. vol. v. 88 ...scocsess. mae 
Melibcea fragilis, Forbes; Malacol. Monensis ........++ Fohaneaaaeees set seaselacels wis) ell ae 
»»  coronata, Johnst.; var. M. ornata, Ald. & Hanc. Ann. N. H. 
VOl.1x: 34 dopwddece aeaemsascredeeses Bec SH Picerontenn) pon esenns 
Calliopza? bifida; Doris bif., Mont. Linn. Trans. xi. p. 198.t. 14. £3; 
Thomp. Ann. N. H. vol. vii. 480.....eseeseeeeeee hee Se oeeg Beer Pecos 
Eolis papillosa, Lin. (Sp.) sssecssscsesseerecereres bast. scuesene fiotso. erseees nates 
,, ZLetlandica, Forbes, Athenzeum, 1839, p.647  s.scseeeeaseeee siseatacneeetl.Ealeee 
», Cuvieri; Lam., Johnst. Ann. N. H. vol. i. 120. pl. 3. f.9-11 ...... athe 
», coronata, Forb. Athen. id.  cscccccsecssscesssveceneccs ed aapances caseae seen det 
»» pallida, Ald. & Hanc. Ann. N. H. vol. ix. ps 35 crsesessseeesereeeees nanos 
3. ‘Biba; 55 a See AVOl. Kil. LO)lT saeeeenscusseshiepere 5 ee 
>» Farrani, ” ” ”» ” (1.) 
»» Drummondi, Thomp.; E. rufibranchialist, Ann. N. H. vol.v.p.89 (I.)| , 
4 BCID) Pe oh I aeINE Red H, thaiotte ase: na adeneet peut le 
Proctonotus mucroniferus, Ald. & Hance. Aun. N. H. vol. xiii. (1.)...-+..-/..-] 4 
Alderia amphibia§, Allman, MSS. (1.) ...--.-+- HABE ME aeetnaccesceerta avcseslots|seelaag 
Twenty species of Nudibranchia were recorded as Irish in 1840 ||, a number 
equal to that known to be British in 1828, when Dr. Fleming’s ‘British Animals’ 
* “(sp.)” throughont the Report denotes the specific name, and it only, to be that 
of the author quoted. 
+ Mr. Alder, after an examination of the specimens so designated, considers that 
they are not the true Z. rufibranchialis: I have therefore proposed the above name, as 
from the sketches and minute description of the species in Dr. J. L, Drummond’s 
journal, it has become properly understood. 
{ The species of Zolis not named was dredged at Donaghadee in May 1843, by 
Dr. Drummond, but unfortunately a description was not made out at the time of its 
capture. The specimen on being submitted to Mr. Alder was stated to be certainly 
distinct from any of the preceding and to come nearest in form to his £, concinna 
and Z£. vittata, though probably distinct from either of them. 
§ Alderia is a new genus of Dr. Allman’s, as Proctonotus is of Messrs, Alder and 
Hancock. 
|| Annals Nat. Hist. vol. v. p. 84 e¢ seg., and vii. p. 480. 

