Notes from the Gatty Marine Laboratory. 103 



species from Cayenne which G. Koch determined as maurus, 

 and made the type of the genus Brotheas. 



Since the species from British Guiana which I have 

 hitherto regarded as Herbstii is not specifically identical with 

 the one referred to Herbstii by M. Simon, and since I am not 

 able to say which of the two species, if indeed either, is 

 identical with what I consider to be the true Herbstii, it 

 appears to me that the least harmful course to follow in the 

 matter will be to give a new name to the British Guiana 

 form pending an examination of the type that C. Koch had 

 before him. In such doubtful cases as these I am convinced 

 that it is better to give a new name to a species than a wrong 

 one. 



Broteas Alleni (Wood). 

 Scorpio Alleni, Wood, J. Ac. Sci. Philad. (2) v. p. 360 (1863). 



According to Dr. Marx (Proc. Ent. Soc. Washington, i. 

 p. 91, 1888) this species is identical with Broteas Herbstii, 

 Thoiell ; but since neither Dr. Marx nor anyone else appears 

 to know exactly what Broteas Herbstii of Thorell is, the 

 statement has no very great value except in so far as it is 

 possible to conclude from it that the Scorpio Alleni of Wood 

 belongs to the genus Broteas. Lastly, since the locality 

 assigned to the species is Lower California, it is to my mind 

 in the highest degree improbable that Alleni is identical with 

 any of the South-American species mentioned above. 



XV. — Notes from the Gatty Marine Laboratory , St. Andrews. — 

 No. XIX. By Prof. M'Intosh, M.D., LL.D., F.R.S. 



[Plate II.] 



1. On some Larval Stages of Clione limacina, Phips. 



2. On Bipinnaria asterigera, M. Sars (Larval Stage of Luidia). 



3. On Lepidonotus Wahlbergi, Knbg., and its Relation to L. clava, 



Mont. 



4. On Sigalion squamattim, Delle Chiaje, and its Relationships with 



S. Mathilda, Aud. & Ed., and S. Buskii, Mel. 



5. The Nemerteans in British Text-books of Zoology. 



1. On the Larval Stages of Clione limacina, Phips. 



In the Ann. & Mag. Nat. Hist, for August 1887 a note on 

 the occurrence of specimens of this species in St. Andrews 

 Bay is recorded, and they have since been found both there 



