No. 3. — On the Eyes, the Integumentary Sense Papillce, and the 

 Integument of the San Diego Blind Fish {Typhlogohius cali- 

 fornicnsis, Steindacliner). By W. E. Eitter.^ 



The work the results of which are embodied in the present paper 

 was begun and well advanced at Harvard University, and has been 

 completed at the University of California. 



I wish here to express my warmest appreciation of the many kind- 

 nesses received at the hands of Prof. E. L. Mark, not only during my 

 residence in Cambridge as a student under him, but particularly since 

 leaving there. I have also to thank Prof. C. H. Eigenmann both for 

 specimens sent me from San Diego while I was working in Cambridge, 

 and for valuable information and suggestions about collecting the fish 

 during my visit to San Diego last summer. 



Typhlogohius californiensis was first described by Dr. Franz Stein- 

 dachner. The species is the type of the genus, and thus far is the 

 only one known. Steindachner's ('79, pp. 142, 14.3) description of the 

 eyes is as follows : " Die winzig kleinen, wie Punkte durchschimmer- 

 enden Augen, liegen hoch am Seitenabfalle des Kopfes gegen Ende des 

 ersten Viertels der Kopfliinge ; ihre Entfernung von einander steht der 

 Schnauzenlange nach und betragt circa \ der Kopflange." According 

 to this author the genus resembles Crystallogobius, Gill, from which it 

 differs in its dentition and abortive eyes. 



Miss Rosa Smith ('81, pp. 19-21), — now Mrs. C. H. Eigenmann, — 

 unaware that the fish had been described by Steindachner, redescribed 

 it, making for it, as the Vienna ichthyologist had done, a new genus, the 

 name of which was derived from the rudimentary condition of its eyes. 

 Othonops was the generic name given it by Miss Smith, and this term, 

 signifying as it does " veiled or obscured eyes," is, so far at least as the 

 younger individuals are concerned, undoubtedly more nearly true to the 

 fiicts, as the sequel will show, than is tlie name chosen by Steindachner, 

 Typhlogohius signifying " blind goby." The specific name chosen by 

 Miss Smith was eos. She says : *' This species is most closely related to 



1 Contributions from the Zoological Laboratory of the Museum of Comparative 

 Zoology, under the direction of E. L. Mark, No. XXXV. 

 VOL. xxiv. — NO. 3. 



