

392 THE SNAKES OF FLORIDA. 



The Tropidoclonium storerioides Cope, of Mexico, can not be referred 

 to either of the above genera, but agrees with Matrix (Tropidonotus), to 

 which I refer it under the name Natrix storerioides. 



Natrix taxispilota Holhr. Lake Okeechobee, Heilprin. 



Professor Heilprin has referred an individual of this species to a dis- 

 tinct subspecies, under the name of Tropidonotus taxwpilotm brockii, on 

 account of the subdivision of the parietal shield. This is, however, 

 the normal condition of the species. 



Natrix fasciata fasciata Linn. Northern Florida. 



The generic name Natrix antedates Tropidonotus of Kuhl. It was 

 proposed by Laurenti in 1789 for a heterogeneous collection of species, 

 but the A', vulgaris ( Tropidonotus natrix Kuhl) was clearly indicated as 

 the type. Ruhr's name dates from 1826. 



Natrix fasciata erythrogaster Shaw. Northern Florida. 

 Natrix usta Cope. Tropidonatus ustus Cope. 



The typical specimen was taken at Charlotte Harbor. A second was 

 sent to the National Museum from Key West. 



Natrix compressicauda walkeri. Yarrow. 



Natrix compressicauda conipsolaemus Cope. 



Natrix compressicauda compressicauda KefTn. Five specimens from Georgiana, 



and uno from another locality. 

 Natrix compressicauda bivittata, subsp. nov. 



Head oval, distinct from neck; tail long, moderately compressed at 

 base; less than in types of species. Rostral plate elevated; interuasals 

 longer than wide; frontal elongate and with parallel sides. Loreal 

 oblique, longer than high; oculars 1-3, the inferior posterior not below 

 the orbit, but nearly cutting the filth superior labial out of its border. 

 Temporals 1-3; superior labials eight, middle of orbit above suture be- 

 tween fourth and fifth. Inferior labials ten; postgeueials longer than 

 pregeneials. Scales of body in twenty-one series, all keeled. 



Ground color above light brownish-ash, below light yellow. The 

 former region is crossed in the typical specimen by thirty-six blackish- 

 brown cross-bars, which are wide and close together on the median 

 dorsal region, ami tapering and therefore separated on the sides. The 

 dorsal parts of the spots join and form two wide longitudinal bands on 

 the anterior fifth of the length. A pale-brown band passes from the 

 superciliary plate to the side of the neck, leaving a dark postorbital 

 band below. All the plates of the lips and throat are yellow, and have 

 narrow black borders. On the yellow of the belly there are black spots 

 on the gastrosteges, which incline to fuse trausversely, leaving a part 

 of the ground visible in the middle. Anteriorly this arrangement as- 

 sumes the form of two longitudinal black bands, which are well defined 

 on the anterior fourth of the length, leaving a yellow band between 

 and one on the outer side of each of them. 



