plicatula, Solen ensis, Machera coslata and Mya arenaria; all the old 

 girls as I first knew them around Nahant when I got introduced to 

 them. The new names make me think of the divorce court. They 

 seem to all have been swapping partners." 



Unless we return to a sane method of using names, going back 

 to the Linnaean conception of generic distinctions when it does not 

 conflict with obvious inaccuracies there will continue three catagories 

 of nomenclature. First, and by far the most ancient are the vulgar 

 or vernacular names when they exist; though formerly considered 

 the most unreliable, in the present debauch of names, they are regarded 

 by many workers as more reliable. Second, the names founded on 

 generic principles as they have existed for nearly a century, familiar 

 to all students and the only names known to geologists, paleontologists 

 and other students of cognate subjects and third, the modern incubus 

 of names which have been imposed by taxonomists, — a bewildering 

 accession that paleontologists cannot keep up with arid do not. In my 

 " Lamellibranchs " I gave my reasons for adopting the names given in 

 the second edition of Gould's " Invertebrata " and generally in the 

 three great standard works of Forbes and Hanley's "British 

 Mollusca," 4 Vols., Jeffreys' "British Conchology," 6 Vols., and 

 Woodward's "Manual". In this same paper some errors crept in. 

 I made some mistakes in the Mytilidx. My attention was also called 

 to Pandora trilineata which should have been indicated as P. gouldiana, 

 of Dall. This distinguished malacologist has shown that the true 

 P. trilineata, of Say, is clearly distinct from the northern species to 

 which Dall gave the name gouldiana. An examination of the south- 

 ern species show that in form, size, shape of shell, and particularly of 

 the hinge it is quite distinct, so differerit, indeed, that one wonders 

 why a new generic name was not immediately established for it! 



ENTALIS STRIOLATA Stimpson 

 PI. L F"ig. 1. Length 48 mm. 



A figure is given of this creature with body extended. I have 

 watched it in this expanded condition and have never seen the tentacles 



