104 UNITED STATES NATIONAL MUSEUM BULLETIN 296 



0.60 mm, with a neck of 0.458 mm, slightly over one-third the length 

 of the total body, excluding the spines in both measurements. C. longi- 

 collatus is diagnosed as having a neck one-third as long as the entire 

 body. 



The separation of C. variabilis from C. longicollatus is thus rather 

 tenuous, and they are considered very closely related. 



Cryptophialus neumiani, new species 



Figure 27 



Diagnosis: Cryptophialus with operculum armed with two pairs 

 of gnarled, haired protuberances bearing serrated spines and medial 

 stout, toothed knobs. A row of about 15 very thin, hyaline, ser- 

 rated teeth line the lateral edge of the operculum. The extremely 

 thin lateral bar terminates in an area with a few heavy teeth. 



Etymology: The species is named in honor of Dr. William A. 

 Newman of the University of California at San Diego, a colleague 

 and friend. It should be noted that an error of mine put the first 

 species I named for him, Utinomia newmani, in synonymy with 

 Weltneria hirsuta (q.v.). I trust that this species will be more permanent. 



Distribution: About 115 specimens associated with Lithoglyptes 

 wilsoni in Turbo lajonkairi from Wake Island, collected in July, or 

 August, 1923, by D. Thaanum, from the Bernice P. Bishop Museum 

 collection 66541, through the courtesy of Dr. Yoshio Kondo. Nine 

 specimens were in Acropora digitifera (Dana) from near Coron, 

 Palawan, Philippine Islands, from the collection of the National 

 Museum of the Philippines, through the courtesy of Fernando 

 Dayrit, identified by Professor Francisco Nemenzo of the University 

 of the Philippines. 



Type-material: Holotype: Female 1.34 X 0.55 mm, with a male 

 of 0.37 X 0.11 mm, Bernice P. Bishop Museum B460. Paratypes : Aust, 

 CA, Mex, Seto, SFSC, SIO, USNM, Vict. One paratype measured 1.20 

 X 0.72 mm, with an aperture of 0.13 mm on a neck of 0.22 mm. The 

 figured specimen (fig. 1) measures 1.25 X 0.55 mm, with an aperture 

 of 0.18 mm on a neck of 0.39 mm. Additional material: Brit, Belg, 

 BA, Dublin, Paris, UCT. 



The main differentiating features of this species are to be found on 

 the mantle. The differences in the opercular armament and lateral 

 bar are pertinent, and separate this species from C. variabilis Stub- 

 bings and C. longicollatus Bemdt. 



The operculum tends to collect dirt and debris in the many serrated 

 teeth and hairs. After cleaning and clearing by boiling in KOH, 



